行为的科学研究必须基于客观、可测量的数据。

太阳，尽管有所有围绕它并依赖它的行星，仍然可以像宇宙中没有其他事情可做一样，使一串葡萄成熟。

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.

追求智慧的路上，没有终点。