你越努力，就越难放弃。

The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.

Men are born ignorant， not stupid； they are made stupid by education.

可持续性不是一种选择，而是我们对后代的责任。

希望是唯一比恐惧更强大的东西。

每一个现有情境都有变得更好的潜力

我不完美，我也不假装完美。