资本资产定价模型并非旨在描述投资者实际行为的实证理论,而是关于理性投资者应如何行事的规范理论。
I don't think President Bush is doing anything at all about Aids. In fact, I'm not sure he even knows how to spell Aids.
宁可别人对不起我,不要我对不起别人。
记忆是个狡猾的东西。它并不总是可靠的,但它是我们拥有的一切。
I always aim to create films that are both entertaining and thought-provoking.