The joy of mathematics comes from the moments of clarity when complex things become simple.
数学的快乐来自于复杂事物变得简单的清晰时刻。
If you're not moving forward, you're falling behind.
独自守在窗前,怎样才能熬到天黑
I am not the strongest person, but I am the toughest person.
真理是时间的孩子,而不是权威的孩子。