When stocks are attractive, you buy them. Sure, they can go lower. I've bought stocks at $12 that went to $2, but then they later went to $30. You just don't know when you can catch the bottom.

关于化石燃料的讨论常常缺乏细微差别——我们必须承认它们的历史作用和超越它们的紧迫性。

Your self-worth is determined by you. You don't have to depend on someone telling you who you are.

Science teaches us humility, for every discovery reveals the vastness of our ignorance.

The challenge in neuroscience is not just to map the brain, but to understand how it creates the mind.

On the way to a grand goal， celebrate the smallest victories as if each one were the final goal. No matter where it ends you are victorious.

I think music is the most powerful thing in the world because it can make you feel things that words can't.

能源的未来在于传统能源与可再生能源之间的平衡。

森林的真正价值永远不能仅用板材英尺来衡量。