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.
灵魂不灭。
The beauty of physics lies in its ability to reveal the hidden connections between seemingly unrelated phenomena.
预测未来的最好方法就是创造未来。
没有一个国家能够单独解决海洋的挑战。
Chainsaws don't destroy forests—short-term thinking does.