“Real knowledge is to know the extent of one's ignorance.”

“The unexamined life is not worth living.”

“Learning never exhausts the mind.”

“I am larger, better than I thought; I did not know I held so much goodness.”

“Knowing others is wisdom, knowing yourself is enlightenment.”

“We know what we are, but know not what we may be.”

“Knowing yourself is the beginning of all wisdom.”

“Experience is simply the name we give our mistakes.”