Don't give up on your dreams because of difficulties.

The purpose of morality is to teach you, not to suffer and die, but to enjoy yourself and live.

心智是一个计算器官的系统，通过自然选择设计来解决我们祖先在觅食生活方式中面临的各种问题。

我不是为孩子写作，我是为人写作。