Abraham Maslow said this quote

We fear our highest possibility (as well as our lowest one). We are generally afraid to become that which we can glimpse in our most perfect moments.

~ Abraham Maslow

One's only rival is one's own potentialities. One's only failure is failing to live up to one's own possibilities. In this sense, every man can be a king, and must therefore be treated like a king.

~ Abraham Maslow

Work is that which you dislike doing but perform for the sake of external rewards. At school, this takes the form of grades. In society, it means money, status, privilege.

~ Abraham Maslow

Human nature is not nearly as bad as it has been thought to be.

~ Abraham Maslow