The books that the world calls immoral are books that show the world its own shame.

The key to making money in stocks is not to get scared out of them.

"Memory is what we thought we'd forgotten; it's what we have forgotten we've forgotten."

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。

一个好的机械师不仅仅是一个会锉锤的人，而是能够创新和完善的人。