The secret of being loved is in being lovely; and the secret of being lovely is in being unselfish.
It is not a question how much a man knows, but what use he can make of what he knows.
Perfect love holds the secret of the world's perfect liberty.
God gives every bird its food, but He does not throw it into the nest. He does not unearth the good that the earth contains, but He puts it in our way, and gives us the means of getting it ourselves.
All things unrevealed belong to the kingdom of mystery.
Geology gives us a key to the patience of God.