“Know thyself.”
“Know one, know all.”
“Our lives teach us who we are.”
“Self-knowledge comes from knowing other men.”
“Know thyself? If I knew myself I would run away.”
“He knows the universe and does not know himself.”
“A true knowledge of ourselves is knowledge of our power.”
“One secures the gold of the spirit when he finds himself.”
“You never know yourself till you know more than your body.”
“Explore thyself. Herein are demanded the eye and the nerve.”
“The one self-knowledge worth having is to know one's own mind.”
“Getting in touch with your true self must be your first priority.”
“You have to know what's important and what's unimportant, for you.”
“Other men's sins are before our eyes; our own are behind our backs.”
“I have the true feeling of myself only when I am unbearably unhappy.”
“He who knows others is clever; He who knows himself has discernment.”
“When one is a stranger to oneself then one is estranged from others too.”
“Know thyself. Nothing in excess. The Self is required to balance the Self.”
“To know yourself, see how others do, to know others look into your own heart.”
“Know they thyself, presume not God to scan. The proper study of mankind is man.”
“There are three things extremely hard: steel, a diamond, and to know one's self.”
“It's not only the most difficult thing to know one's self, but the most inconvenient.”
“Trust not yourself, but your defects to know, make use of every friend and every foe.”
“Many a man who has known himself at ten forgets himself utterly between ten and thirty.”
“An humble knowledge of thyself is a surer way to God than a deep search after learning.”
“To know yourself you have only to set down a true statement of those that ever loved or hated you.”
“You can live a lifetime and at the end, know more about other people than you know about yourself.”
“I want, by understanding myself, to understand others. I want to be all that I am capable of becoming.”
“Inside myself is a place where I live all alone and that is where I renew my springs that never dry up.”
“There is a period of life when we swallow knowledge of ourselves and it becomes either good or sour inside.”