If you're not stubborn， you'll give up on experiments too soon. And if you're not flexible， you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.
"I wonder how many people I've looked at all my life and never seen."
"我不是一个人，我是一种语言。"
一般来说，嫉妒、怨恨和自怜都是灾难性的思想模式。自怨自艾与偏执狂相当接近，而偏执狂是最难扭转的。