逻辑学研究不仅仅是关于形式系统，更是关于人类推理的本质。
The greatest enemy of a good plan is the dream of a perfect plan.
慈悲：开始在家里，并通常保持在那里。
The public have an insatiable curiosity to know everything, except what is worth knowing.
Success is not the result of spontaneous combustion. You must set yourself on fire.
发散级数是魔鬼的发明，基于它们的任何证明都是一种耻辱。
创造真正繁荣的唯一途径是给予人们创新和创造价值的自由。
The steel industry must embrace sustainability or risk becoming obsolete.