学习数学的唯一方法就是做数学。
The strength of a company lies in its people—their skills, their passion, and their commitment.
Reality is not only stranger than we suppose, but stranger than we can suppose.
国家一定要有直言进谏的臣子,上级必须有敢于提出反对意见的下级,议论国政的人不停止,各种不同政见的人相互辩论,才可以长久保存国家,使国家兴盛强大。也就是说言论自由是民众的基本权利,每个人都可以提出不同的政见,民众有平等参与政治的权利。