The deepest problems in mathematics often arise from the simplest questions.
数学中最深刻的问题往往源于最简单的问题。
反对森林砍伐的斗争是为人类的未来而战。
我认为当你爱一个人时,你必须准备好失去他们。
Don't be afraid of failure, be afraid of not having the courage to try.