当我们既倾听科学家又倾听农民时,真正的进步才会发生。
在个体中,疯狂是罕见的;但在团体、党派、国家和时代中,它却是常规。
You have enemies? Good. That means you've stood up for something, sometime in your life.
最好的儿童书籍是那些让孩子思考的书籍。