It takes a wise man to discover a wise man.
Diogenes
Wise kings generally have wise counselors; and he must be a wise man himself who is capable of distinguishing one.
Epicurus
Misfortune seldom intrudes upon the wise man; his greatest and highest interests are directed by reason throughout the course of life.
Euripides
The best and safest thing is to keep a balance in your life, acknowledge the great powers around us and in us. If you can do that, and live that way, you are really a wise man.