投资于农民教育就是投资于乳制品的未来。
I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection.
孩子天生就能改进他们的行为，而且他们也喜欢这样。心理学家说，孩子必须游戏、因为借着游戏，孩子的发展才能更趋完善。
Success is not final, failure is not fatal: It is the courage to continue that counts.
The greatest rewards come from working on something that nobody has a name for. If you possibly can， work where there are no words for what you do.
最终，我们都必须面对自己行为的后果，无论我们多么努力地避免它们。
A good editor knows when to cut and when to hold.
