„Luck is a matter of preparation meeting opportunity.“

— Oprah Winfrey
„I believe luck is preparation meeting opportunity. If you hadn’t been prepared when the opportunity came along, you wouldn’t have been lucky.“
— Oprah Winfrey
„There is no such thing as luck; there is only adequate or inadequate preparation to cope with a statistical universe.“
— Robert A. Heinlein
„With God on your side, what does luck matter?“
— Cassandra Clare