当最后一棵树被砍倒，最后一美元将失去意义。

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.

Running is not about being better than someone else. It's about being better than you used to be.

我不在乎别人怎么说我，只要不是真的。