I learned the value of hard work by working hard.

The secret of success is learning how to use pain and pleasure instead of having pain and pleasure use you. If you do that, you're in control of your life. If you don't, life controls you.

A leader is one who knows the way, goes the way, and shows the way.

They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.

In youth we learn; in age we understand.

God lets everything happen for a reason. It's all a learning process, and you have to go from one level to another.

Silent gratitude isn't much use to anyone.

The more knowledge you've got, the more understanding you have, the better you are able to implement and pass it on to others.

We have a hunger of the mind which asks for knowledge of all around us, and the more we gain, the more is our desire; the more we see, the more we are capable of seeing.

That's one small step for a man, one giant leap for mankind.