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 hem 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.

The only way to learn mathematics is to do mathematics.

All men are created equal.

The best way to get a project done faster is to start sooner.

我们每天可支配的时间是有弹性的；我们感受到的激情会扩展它，我们激发的激情会收缩它。