Time has no divisions to mark its passage, there is never a thunderstorm or blare of trumpets to announce the beginning of a new month or year.

It is the greatest good to the greatest number of people which is the measure of right and wrong.

The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'

一个人能做的最好的事情就是帮助另一个人了解更多。

我不会让过去束缚我。