In the exploration of science, we must not only ask why but also why not.
人需要困扰，困扰是心理健康的必需之物。
She's simply too strange. We can't relate to her, she speaks in a funny way, she comes from an odd place. So we can't relate to her, and when you can't relate to somebody, you don't envy them. The closer two people are -- in age, in background, in the process of identification -- the more there's a danger of envy, which is incidentally why none of you should ever go to a school reunion, because there is no stronger reference point than people one was at school with.
我不喜欢被束缚，我喜欢自由。
最好的交易者是那些能够适应不断变化的市场条件的人。