As soft wax is apt to take the stamp of the seal, so are the minds of young children to receive the instruction imprinted on them.
PlutarchFor, in the language of Heraclitus, the virtuous soul is pure and unmixed light, springing from the body as a flash of lightning darts from the cloud. But the soul that is carnal and immersed in sense, like a heavy and dank vapor, can with difficulty be kindled, and caused to raise its eyes heavenward.
Plutarch