A wise man makes his own decisions, an ignorant man follows public opinion.

The key is not to prioritize what's on your schedule, but to schedule your priorities.

Don't let what you cannot do interfere with what you can do.

If you think you can do a thing or think you can't do a thing, you're right.

I hear and I forget. I see and I remember. I do and I understand.

I always wondered why somebody doesn't do something about that. Then I realized I was somebody.

He who teaches children learns more than they do.

Knowing is not enough; we must apply. Willing is not enough; we must do.

If I had an hour to solve a problem, I'd spend 55 minutes conceptualizing it & 5 minutes solving it.

All the so-called "secrets of success" will not work unless you do.