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Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian Urn”

Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

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Page 1: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Perception & Truth

Is it true that:

“Beauty is truth, truth beauty,” --that is all

Ye know on earth, and all ye need to know.

(Keats, “Ode on a Grecian Urn”

Page 2: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Perception-at-Large

The process by which we become aware of ordinary objects through the use of the senses.

Page 3: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Commonsense (naïve) Realism The perceived object is as I perceive it.

Reality is separate and distinct from me. Sensation accurately perceives what is.

But how do we explain hallucinations, dreams and mirages?

But how do we explain contradictory properties of experience?

Page 4: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Epistemological Dualism: Representative Theory of Perception

Real objects exist apart from us but… Ideas also exist in the mind.

The mind takes pictures of external objects.

But do our senses take clear and consistent pictures?

But how do we account for point-of-view?

Page 5: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Subjective Idealism: Mentalism

Ideas in the mind are the one reality.“To be is to be perceived.”Solipsism: God is the source of all

human ideas.

But doesn’t the universe exist whether we perceive it or not?

Proof is not possible.

Page 6: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Phenomenalism I: Kant

Noumena (things-in-themselves) cannot be perceived.They stimulate the senses.

Phenomena are the ideas of things as they appear to us.The form of knowledge is the way the mind

structures input.The content comes from the sense-experience.

Page 7: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Phenomenalism II: Kant

Form of knowledge is a priori (prior to our knowing it) in the mind.We could not do science, or have any

experience without the a priori form of knowledge in our brains.

But what are these a priori forms? What’s the difference?

Page 8: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Contemporary Realism

The real world is out there and it is open to us to experience.

Perception does not change the object. Experience clarifies our understanding

of the object.Scientific Method works.We can trust inference as we admit

incomplete knowledge.

Page 9: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Truth

It seems to be the ultimate aspiration. It guarantees certainty. How do I get it? How is it distinguished from belief?

Page 10: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Correspondence Theory

A statement is true if it conforms (corresponds) with objective reality.

Consensus of opinion confirms actual ‘states of affairs.’Accurate reports of the facts are sufficient

basis for established truth.• Disagreements only point us to further

clarification of language and ‘proof.’But now do we discuss love, the soul, etc?

Page 11: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Coherence (hang-together) Theory A proposition is true if it is totally

integrated with other propositions already established as part of a whole system.Geometry based on axioms.Reality based on Plato’s FormsTheoretical propositions are coherent

inside a system of established truths.• But what is the starting point?• What if starting points are false, or unreliable?

Page 12: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Pragmatic Theory

Truth is what works for people. Consequences determine the truth of

statements. Truth is measured in terms of how it

affects the ideal outcomes of human experience.

What works might not be true.

Page 13: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Beautiful Natural Form?

Page 14: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Boticcelli’s Venus: Ideal Form?

Page 15: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Michelangelo: Ideal Geometry?

Page 16: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Pollock: Alternate Truth?

Page 17: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Warhol: Eye of Beholder?

Page 18: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Van Gogh: Higher Truth?

Page 19: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Lichtenstein: Perception is Truth?

Page 20: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Mom, Dad, I want you to meet…

Page 21: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Mom, Dad, I want you to meet…

Page 22: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Is it all culture?

Page 23: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

What Side Are You On?

Page 24: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

“I want to be a singer.”

Page 25: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

The Truth Hurts When You Stink!

Page 26: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian
Page 27: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian
Page 28: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Golden Ratio=‘Eye of God’?

Page 29: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Mathematical Perfection?

Page 30: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Divine Proportion?

Page 31: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Sacred Geometry?

Page 32: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Gizeh

Page 33: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Mandalas

Page 34: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

Love: A Formula?

Page 35: Perception & Truth Is it true that: “Beauty is truth, truth beauty,” --that is all Ye know on earth, and all ye need to know. (Keats, “Ode on a Grecian

What Does the Pattern Mean?