真正的冒险不在外面，而在内心。
If a Nation expects to be ignorant and free in a state of civilization,it expects what never was and never will be....If we are to guard against ignorance and remain free,it is the responsibility of every American to be informed."
只要你嘴里有食物，你就暂时解决了所有问题。
Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations.