All I want to do is change the world.

To solve a problem or to reach a goal, you don't need to know all the answers in advance. But you must have a clear idea of the problem or the goal you want to reach.

Regardless of who you are or what you have been, you can be what you want to be.

Aim for the moon. If you miss, you may hit a star.

Every great man, every successful man, no matter what the field of endeavor, has known the magic that lies in these words: every adversity has the seed of an equivalent or greater benefit.

Give hope (the magic ingredient for success) — you will have hope and be made hopeful.

Those who believe they can't repel the positive; they use the negative side of their talisman. Those who believe they can repel the negative; they use the positive side.