You have to be able to admit when you’re wrong and get out of a losing position quickly. The worst thing you can do is hold onto a losing trade hoping it will come back.
有时候，我们无法改变的事情最终改变了我们。
Our frustration is greater when we have much and want more than when we have nothing and want some. We are less dissatisfied when we lack many things than when we seem to lack but one thing.