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.

Writing is another way of making love.

学习数学的最好方法就是做数学。

Theoretically there is a perfect possibility of happiness: believing in the indestructible element within oneself, and not striving towards it.

天下的道理，归根结底只有一个。

新的权力来源不是掌握在少数人手中的金钱，而是掌握在多数人手中的信息。

最高尚的快乐是理解的喜悦。

生活中没有什么事情像你在思考它时认为的那么重要。