相对论不仅仅是一个科学理论，而且是一个哲学理论。

I like being a woman, even in a man's world. After all, men can't wear dresses, but we can wear the pants.

The greatest happiness is to know the source of unhappiness.

"Never stop learning, because life never stops teaching."

解释：人参是补气效果最好的药材，三七则是补血效果最佳的药材，体现了中药的特效。

教育不是为了生活的准备，教育就是生活本身。

道德不是关于如何使自己幸福的学说，而是关于如何使自己配得上幸福的学说。

Old paint on canvas, as it ages, sometimes becomes transparent. When that happens it is possible, in some pictures, to see the original lines: a tree will show through a woman's dress, a child makes way for a dog, a large boat is no longer on an open sea. That is called pentimento because the painter 'repented,' changed his mind. Perhaps it would be as well to say that the old conception, replaced by a later choice, is a way of seeing and then seeing again.

我从不考虑过去。我总是期待下一个挑战。