Sometimes it’s the people no one imagines anything of who do the things that no one can imagine.

当微妙的心智通过大脑和感官向外时，粗糙的名称和形式就出现了；当它停留在心中时，名称和形式就消失了。

最好的政策是那些既听取科学又尊重传统的政策。

The greatest sweetener of human life is Friendship. To raise this to the highest pitch of enjoyment, is a secret which but few discover.

The only way to learn mathematics is to do mathematics.

遇事要再三考虑，慎重行事，第一重要的是不要自欺欺人。