There are some secrets which do not permit themselves to be told.
指数基金消除了个股、市场板块和经理选择的风险。只剩下股市风险了。
What can be said at all can be said clearly, and what we cannot talk about we must pass over in silence.
情绪是进化出来的适应机制,用于协调其他心理机制解决特定的适应性问题。