在科学中，最重要的不是获得新的事实，而是发现思考它们的新方法。

释义：如果计划不够周密和保密，灾祸就会先到来。

诚信是所有商业成功的基石。

I always try to stay true to myself and to play the game the right way.

In the state of nature, indeed, all men are born equal, but they cannot continue in this equality. Society makes them lose it, and they recover it only by the protection of the laws.

1923年对广州国民党员的演说

The only thing that counts is what cannot be explained.