Mathematics is the key to unlocking the secrets of the universe and understanding the fundamental laws that govern it.

The mind's first duty is to keep the organism going.

有时候破案的唯一方法就是像罪犯一样思考。

The real problem is not whether machines think but whether men do.

读书求明理，须让自己满意；与别人谈道理，须令别人佩服。