The real challenge is to create something that has meaning beyond its function.

No one is free, even the birds are chained to the sky.

The beauty of physics lies not in having all the answers, but in asking better questions.

I'm not perfect, but I'm trying.

Never let anyone tell you that you can’t do something.

你能给孩子最好的礼物是责任的根和独立的翅膀。