The essence of mathematics lies in its freedom.
Simple can be harder than complex: You have to work hard to get your thinking clean to make it simple.
你在训练中流的汗越多，在战斗中流的血就越少。
Man is an animal that makes bargains: no other animal does this no dog exchanges bones with another.
人是一种做交易的动物，没有其他动物会这样做，没有狗会和另一只狗交换骨头。
最成功的人是那些愿意做不太成功的人不愿意做的事情。
The study of automorphic forms is a testament to the power of symmetry in mathematics.
当儿童还没有发展起控制能力的时候，“让儿童想干什么就干什么”是与自由观念相违背的。