性格软弱，至多只能做到不犯罪恶，如果还要侈谈高尚的美德，那就是狂妄和大胆了。

科学中最重要的就是不要害怕提出问题。

The right of nature... is the liberty each man hath, to use his own power, as he will himself, for the preservation of his own nature; that is to say, of his own life.

过去从未死去，它甚至还未过去。

Thinking consists in envisaging, realizing structural features and structural requirements.

信任是任何成功团队的基石。