解释：自己行为不端的人就难以要求别人行为端正，不孝顺父母的人也不能忠于君主。

I don't try to predict the market. I just try to buy stocks that are cheap.

To understand the universe, you must understand the language in which it is written, and that language is mathematics.

The challenge of leadership is to be strong, but not rude; be kind, but not weak; be bold, but not bully; be thoughtful, but not lazy; be humble, but not timid; be proud, but not arrogant; have humor, but without folly.