"Writing is a way of thinking, not just a record of thought."
数学的美只向更有耐心的追随者展示。
We must embrace change and innovate constantly.
In the state of nature, indeed, all men are born equal, but they cannot continue in this equality. Society makes them lose it, and they recover it only by the protection of the laws.
拯救犀牛的唯一方法是拯救它所生活的环境,因为它与数百万其他动植物物种之间存在相互依赖关系。