社会制度应该建立在个人自由和财产权的基础上,这是繁荣和稳定的关键。
数学不仅仅是人类的发明;它具有一种独立于我们而存在的深刻现实。
Anyone who isn't embarrassed of who they were last year probably isn't learning enough.
可持续发展不是一种选择;它是我们对后代的责任。
Choose the best life; for custom will make it pleasant.