It is better to keep your mouth closed and let people think you are a fool than to open it and remove all doubt.

We make a living by what we get, but we make a life by what we give.

Nobody cares how much you know, until they know how much you care.

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

It's not that I'm so smart, it's just that I stay with problems longer.

Progress lies not in enhancing what is, but in advancing toward what will be.

If you don't know where you are going, you might wind up someplace else.

Quality is never an accident. It is always the result of intelligent effort.

There are three classes of people: those who see, those who see when they are shown, those who do not see.

In the kingdom of the blind, the one-eyed man is king.

None so deaf as those that will not hear. None so blind as those that will not see.

Fortune favors the prepared mind.

Well begun is half done.

The time is always right to do what is right.