The only real failure in life is not to be true to the best one knows.

The meaning of a word is its use in the language.

今天投资研究，否则明天将面临短缺。

The world of experience is produced by the man who experiences it.

人的正确功能是生活，而不是生存。

The effects of policy changes are often more nuanced than simple economic models suggest.

我们希望建立一个为所有人服务的谷歌。

生命中最伟大的荣耀不在于从不跌倒，而在于每次跌倒后都能爬起来。