英国女王伊丽莎白二世来华访问时想见他，他说

The beauty of mathematics lies in its ability to simplify the complex.

The artist must be a dancer of the invisible.

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 stories we don’t tell are the ones that haunt us the most.