“If you can’t explain it simply, you don’t understand it well enough.”

Example is not the main thing in influencing others. It is the only thing.

„If you’re offered a seat on a rocket ship, don’t ask what seat! Just get on.”

You don't have to be great to start, but you have to start to be great.

“If you want to lift yourself up, lift up someone else.”

Here's Johnny!

Laughter is not at all a bad beginning for a friendship, and it is far the best ending for one.