逻辑学研究不仅仅是关于形式系统,更是关于推理本身的本质。
You have to be willing to sacrifice to get what you want or what you need.
In the beginning there was nothing, which exploded.
幸福就像一只蝴蝶,当你追逐它时,总是抓不到,但如果你安静地坐下来,它可能会落在你身上。