质量比数量更重要。一个全垒打比两个二垒安打好得多。
The secret of happiness is freedom, and the secret of freedom is courage.
量子力学的挑战不在于它的复杂性,而在于它的简单性——它迫使我们重新思考关于宇宙的最基本假设。
A proof is a way to convince yourself and others that something is true.