It takes 20 years to build a reputation and five minutes to ruin it. If you think about that, you'll do things differently.

You’re neither right nor wrong because other people agree with you. You’re right because your facts are right and your reasoning is right—and that’s the only thing that makes you right. And if your facts and reasoning are right, you don’t have to worry about anybody else.

Service to others is the rent you pay for your room here on earth.