Every setback is a setup for a comeback.

The greatest thing you'll ever learn is just to love and be loved in return.

宇宙不允许完美。

In science, the credit goes to the man who convinces the world, not to the man to whom the idea first occurs.

"Justice is not always black and white; sometimes it's a shade of grey."

知识的增长是解决问题的关键。