Akhenaton

Those who gave thee a body, furnished it with weakness; but He who gave thee Soul, armed thee with resolution. Employ it, and thou art wise; be wise and thou art happy.

To be satisfied with a little, is the greatest wisdom; and he that increaseth his riches, increaseth his cares; but a contented mind is a hidden treasure, and trouble findeth it not.

True wisdom is less presuming than folly. The wise man doubteth often, and changeth his mind; the fool is obstinate, and doubteth not; he knoweth all things but his own ignorance.

Scorn also to depress thy competitor by any dishonest or unworthy method; strive to raise thyself above him only by excelling him; so shall thy contest for superiority be crowned with honour, if not with success.