统计假设检验是一个古老的问题,但其现代处理始于内曼和皮尔逊的工作。
唯一具有持久重要性的自由是智慧的自由,也就是说,为了本质上值得的目的而行使的观察和判断的自由。
未来属于那些学习更多技能并以创造性方式将它们结合起来的人。
Truth is eternal and unchanging.
People are always blaming their circumstances for what they are. I don't believe in circumstances. The people who get on in this world are the people who get up and look for the circumstances they want, and, if they can't find them, make them.
The elements are the alphabet of nature, and we are learning to read.