The great question which, in all ages, has disturbed mankind, and brought on them the greatest part of their mischiefs, has been, not whether there be power in the world, nor whence it came, but who should have it.

If you can’t get a miracle, become one.

可持续性不是一种选择，而是一种责任。

反反复复地做同一件事情，不是孩子天生就喜欢的，但是在重复的过程中，孩子熟能生巧。