逻辑法则不是心理法则，而是思维法则的法则。

在科学研究中，坚持比才华更重要。

我总是试图突破电影制作中可能的界限。

The only purpose for which power can be rightfully exercised over any member of a civilized community， against his will， is to prevent harm to others.

数学的进步是通过概括实现的。