没有牺牲，就没有自由。

To try to write love is to confront the muck of language: that region of hysteria where language is both too much and too little, excessive and impoverished.

The human mind is a set of information-processing machines that were designed by natural selection to solve adaptive problems faced by our hunter-gatherer ancestors.

真正的幸福首先来自于自我享受，其次来自于与少数精选伙伴的友谊和交谈。