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.

The pursuit of happiness is a never-ending journey.

"To think is to confine yourself to a single thought."

解释：甜味食物走肉，肉病的人不宜多食，说明饮食需与病症相宜。