The journey is the reward.

The people who are crazy enough to think they can change the world are the ones who do.

Obstacles cannot crush me. Every obstacle yields to stern resolve. He who is fixed to a star does not change his mind.

I can't change the direction of the wind, but I can adjust my sails to always reach my destination.

Everyone thinks of changing the world, but no one thinks of changing himself.

People who say it cannot be done should not interrupt those who are doing it.