You have to believe in yourself when no one else does – that’s what makes you a winner.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
生活是世界上最罕见的事情。大多数人只是存在，仅此而已。
学习数学的唯一方法就是做数学。
毫无疑问，美丽女人的死亡是世界上最富有诗意的主题。