不成熟的爱说:“我爱你因为我需要你。”成熟的爱说:“我需要你因为我爱你。”
Immature love says: 'I love you because I need you.' Mature love says: 'I need you because I love you.'
Medicine is my lawful wife, and literature is my mistress.
数学不是一门演绎科学——那是陈词滥调。当你试图证明一个定理时,你不仅仅是列出假设然后开始推理。你所做的是反复试验、实验和猜测。