Human beings, viewed as behaving systems, are quite simple. The apparent complexity of our behavior over time is largely a reflection of the complexity of the environment in which we find ourselves.

性别与经济学的交叉揭示了权力和机会的隐藏动态。

农民是最早的环保主义者，我们只需要给他们合适的工具。

最好的故事不会居高临下地对孩子说话，而是邀请他们进入。

我不是榜样。我是父亲、丈夫、儿子、朋友。我正努力在这些角色中做到最好。

"Life, he realize, was much like a song. In the beginning there is mystery, in the end there is confirmation, but it's in the middle where all the emotion resides to make the whole thing worthwhile."