The world is a place of the living, and the dead have no place in it. The dead are nothing. They are not even a memory. They are forgotten. And the living, too, will be forgotten.

数学家是模式的创造者，就像画家或诗人一样。

The best conservation starts with conversation.

The only real love is the love of truth.

海洋的恩赐是一种特权，而不是一种权利。