Leadership in forestry requires patience—like the trees we steward, real impact grows over time.

Theorems are the milestones of mathematics.

预测未来的最好方法就是创造未来。

I went to the woods because I wanted to live deliberately. I wanted to live deep and suck out all the marrow of life. To put to rout all that was not life. And not, when I had come to die, discover that I had not lived.

 试图指导私人如何使用他们的资本的政治家，不仅会使自己背负起极不必要的责任，还会行使一种权力，它不能被信任交给任何单个个体，甚至不能被信任交给任何理事会或议会，而且这种权力在愚蠢和自负到足以自认为有资格行使它的人手中最为危险。

写作是为沉默者发声。