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.

生命中最要紧的事即是彼此。

人民就是政府，通过他们的代理人来管理它；他们就是政府，是主权权力。

领导力是关于做出艰难的决定并坚持到底。

一个行为的后果会影响它再次发生的概率。