You can learn many things from children. How much patience you have, for instance

Only he is successful in his business who makes that pursuit which affords him the highest pleasure sustain him.

We're made of star stuff.

If one day the speed kills me, do not cry because I was smiling.

Excuses change nothing, but make everyone feel better.

“I’m not going to make it.”—Brand.
“Yes, you are. Yes, you are.”—Cooper