Socrates

"I know that I know nothing."

"There is a sun in every person; just let it shine."

"Speak, so that I may see you."

"There is only one good—knowledge, and one evil—ignorance."

"If you want to move the world, move yourself."

"The beginning is more than half of the whole."

"Dissatisfaction with oneself is the most important trait of any true talent."

"The strongest is the one who controls himself."

"The highest wisdom is to distinguish good from evil."

"One cannot heal the body without healing the soul."

"An unexamined life is not worth living."

"Know thyself."