Those who dream by day are cognizant of many things which escape those who dream only by night.

The secret of change is to focus all of your energy, not on fighting the old, but on building the new.

The past is a foreign country; they do things differently there.

The real challenge is to make something complex appear simple.

唯一比被人谈论更糟糕的事情是不被人谈论。

While you invent， don't select. While you sketch， don't inspect. While you write the first draft， don't reflect.