Unit One

Making a difference

Stephen Hawking

big bang

some famous

Imagination is more important than knowledge.

Quote:

It takes a very unusual mind to undertake analysis of the obvious.

Alfred North Whitehead

Nothing in life is to be feared. It is only to be understood.

---Madame Curie

Genius is one percent inspiration and ninety-nine percent perspiration

You cannot teach a man anything; you can only help him find it within himself.

You have to believe in yourself. That’s the secret of success. 人必须相信自己，这是成功的秘诀。 —— Charles Chaplin 卓别林

I like the dreams of the future better than the history of the past. 我不缅怀过去的历史，而致力于未来的梦想。

—— T. Jefferson 杰弗逊

I think biology is…

…the most important and useful.

…it is essential to protect the ecological balance and environment.

No biology, no medicine.

Well, maybe, but I think …

…chemistry is the most important and useful.

Chemical reaction produces many new things.

It is hardto say…

There are so many physical products. And physics is widely used in …

Without physics, we couldn’t outer space.

explore

That’s true. But maths is …

…the basic science like a tool.

No doubt. But in my opinion,

…the computer can help us settle all kinds of problems at a high speed.