It does not matter how slowly you go so long as you do not stop.

Learning without thought is labor lost; and thought without learning is perilous.

Faced with what is right, to leave it undone shows a lack of courage.

The superior man understands what is right; the inferior man understands what will sell.

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

I hear, I know. I see, I remember. I do, I understand.