书籍是飞机,是火车,是道路。它们是目的地,也是旅程。它们是家。
世界会打击每一个人,但经历过后,许多人会在受伤的地方变得更坚强。
Learning is any change in a system that produces a more or less permanent change in its capacity for adapting to its environment.
Innovation distinguishes between a leader and a follower.