因果推理的力量在于它允许我们预测我们从未采取的行动的效果。
唯一的限制是你为自己设定的限制。
Be thankful for what you have; you’ll end up having more. If you concentrate on what you don’t have, you will never, ever have enough.
有自知之明的人,遇到问题了会反省自己,不会抱怨别人;能够掌握自己命运的人,只会积极进取,不会抱怨苍天。
"Education is the most powerful weapon which you can use to change the world."