"The only way to learn mathematics is to do mathematics."
I don't know what I would do if I didn't act. I think I would go mad.
发现说谎者悖论及相关悖论使人们认识到,直觉上的真理概念并不像乍看起来那么简单。
权威仅是影响行为的众多方式之一。过度强调权威会掩盖其他可能性。