你的态度,而非你的天赋,将决定你的高度。
当且仅当所有投资者都持有均值-方差有效的投资组合时,市场组合才是有效的。
My country is the world, and my religion is to do good.
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
Every decision we make today will ripple through the marine ecosystem for decades.
啊,过一种感受而非思考的生活吧!