证明是一种用于使他人相信数学陈述为真的工具。
A proof is a device for convincing someone else that a mathematical statement is true.
领导就是服务。
医学的未来在于理解看不见的东西——病毒、基因以及塑造健康的无形力量。
Chemistry doesn’t just describe the world; it transforms it.
Most of us spend too much time on what is urgent and not enough time on what is important.
