I can calculate the motions of the heavenly bodies， but not the madness of people.

凡事天下要考察有无的原则,必定是以众人的耳目所见所闻的实情以知有与无来作为标准的。

整体的行为不能从其单独部分的行为中预测出来。

最终，我们都只是故事。

The teacher's task is not to implant facts but to place the subject to be learned in front of the learner and, through sympathy, emotion, imagination, and patience, to awaken in the learner the restless drive for answers and insights which enlarge the personal life.

I have to remind myself that some birds aren't meant to be caged. Their feathers are just too bright. And when they fly away, the part of you that knows it was a sin to lock them up DOES rejoice. Still, the place you live in is that much more drab and empty that they're gone. I guess I just miss my friend.

成功不在于目的地，而在于旅程。