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.

Love is the only sane and satisfactory answer to the problem of human existence.

——1963年6月25日在西德市政厅柏林墙前的演说

"In the study of algorithms, we often find that the most efficient solutions are also the most elegant."

穷人需要的不是施舍，而是阶梯。