Scar tissue is stronger than regular tissue. Realize the strength, move on.

The more you lose yourself in something bigger than yourself, the more energy you will have.

The power for creating a better future is contained in the present moment: You create a good future by creating a good present.

Without ambition one starts nothing. Without work one finishes nothing. The prize will not be sent to you. You have to win it.

No great discovery was ever made without a bold guess.

When I'm inspired, I get excited because I can't wait to see what I'll come up with next.

After climbing a great hill, one only finds that there are many more hills to climb.

Some people regard discipline as a chore. For me, it is a kind of order that sets me free to fly.

People who are unable to motivate themselves must be content with mediocrity, no matter how impressive their other talents.

Courage isn't having the strength to go on - it is going on when you don't have strength.

You must find the place inside yourself where nothing is impossible.

Do not pray for easy lives. Pray to be stronger men.

When I was in college, I wanted to be involved in things that would change the world.

Effort only fully releases its reward after a person refuses to quit.

I trust that everything happens for a reason, even if we are not wise enough to see it.

Everything I've ever done was out of fear of being mediocre.

If you think in terms of a year, plant a seed; if in terms of ten years, plant trees; if in terms of 100 years, teach the people.

If you don't know, the thing to do is not to get scared, but to learn.

Patience is bitter, but its fruit is sweet.

I believe that if you show people the problems and you show them the solutions they will be moved to act.

You got to get it while you can.