It is impossible to make people understand their ignorance, for it requires knowledge to perceive it; and, therefore, he that can perceive it hath it not.
Humility is like a tree, whose root when it sets deepest in the earth rises higher, and spreads fairer and stands surer, and lasts longer, and every step of its descent is like a rib of iron.
It is a little learning, and but a little, which makes men conclude hastily. Experience and humility teach modesty and fear.