这个世界惟有两样东西让我们的心灵感到深深的震撼,

过去总是紧张的，未来是完美的。

Children have real understanding only of that which they invent themselves, and each time that we try to teach them something too quickly, we keep them from reinventing it themselves.

"Technology is the knack of so arranging the world that we don’t have to experience it."

人性本善，社会使其败坏。