我不害怕表明立场，来吧，握住我的手。

Mom, why do you laugh so much? / Because I have you as my daughter.

The essence of modernity is psychologism, the experiencing and interpretation of the world in terms of the reactions of our inner life and indeed as an inwardness.

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。