The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.

The greatest thing in life is to keep your mind young.

The best works are those that are inexplicable.

Anybody who has been seriously engaged in scientific work of any kind realizes that over the entrance to the gates of the temple of science are written the words: Ye must have faith.

To travel is to discover that everyone is wrong about other countries.

过去不是一个地方，而是一种状态。