一个命题的证明是一种性质使得我们相信该命题的过程。
A proof of a proposition is a process the nature of which is such as to produce in us a belief in that proposition.
A sharp commentary on the absurdity of life and human experiences.
我常说，你永远不可能太努力工作。
在科学的世界里，合作是解开生命秘密的关键。