一个理论的前提越简单,它关联的不同事物越多,其适用范围越广,这个理论就越令人印象深刻。
Joy is the emotion which accompanies the fulfillment of our natures when we have lived up to our potential.
War is peace. Freedom is slavery. Ignorance is strength.
做数学的艺术在于找到那个包含所有普遍性萌芽的特殊案例。
The only limit is the one you set yourself.