humility

"The whole earth is but as one point; and of it, this inhabited part of it, is but a very little part."

"If you want to improve, be content to be thought foolish and stupid."

"If anyone tells you that a certain person speaks ill of you, do not make excuses about what is said of you but answer, 'He was ignorant of my other faults, else he would not have mentioned these alone.'"