你把桃子投于我，我把李子回赠与你。桃子和李子价值相当，表明我本人是知恩图报的，也有互相赠送，礼尚往来的意思。

革命是通过人类进行的，但个人必须日复一日地锻造自己的革命精神。

The peculiar evil of silencing the expression of an opinion is that it is robbing the human race； posterity as well as the existing generation； those who dissent from the opinion， still more than those who hold it.

The only learning which significantly influences behavior is self-discovered, self-appropriated learning.

下一个突破不会来自把事情做得更好，而是来自做更好的事情。

来到睡着的人身边的只有梦。

I said, 'I will build you this incredible, gorgeous, gleaming hotel. I will put people to work in the construction trades and save hotel jobs and the Grand Central area will come around.' So the city made the deal.