It is said that a wise man rules over the stars, but this does not mean that he rules over the influences which come from the stars in the sky. It means that he rules over the powers which exist in his own constitution.
ParacelsusAll things are poisons, for there is nothing without poisonous qualities. It is only the dose which makes a thing poison.
ParacelsusEvery physician must be rich in knowledge, and not only of that which is written in books; his patients should be his book, they will never mislead him.
Paracelsus