The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

Intelligence is not to make no mistakes,But quickly to see how to make them good.

The more we learn of the true nature of non-human animals, especially those with complex brains and corresponding complex social behaviour, the more ethical concerns are raised regarding their use in the service of man—whether this be in entertainment, as ‘pets,’ for food, in research laboratories or any of the other uses to which we subject them.

忠于自己，永远不要让别人说的话分散你对目标的注意力。

即使在最黑暗的时刻，幸福也有迹可循，只要记得点亮灯。

解释：自己修身而不责备别人，就能够免于祸难。