The most advanced technology is useless if farmers don't trust it.
每本书都是一句引文;每座房子都是从所有森林、矿山和采石场中引用的;每个人都是从他所有祖先中引用的。
向一个人展示他在错误中是一回事,让他掌握真理是另一回事。
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
Be yourself and you can be anything.