Wisest is he who knows what he does not know.
Many are the thyrsus-bearers, but few are the mystics.
The wisdom of men is worth little or nothing.
From all wild beasts, a child is the most difficult to handle.
The greatest mistake in the treatment of diseases is that there are physicians for the body and physicians for the soul, although the two cannot be separated.
We understand why children are afraid of darkness ... but why are men afraid of light?