Not wise does it seem to attempt comprehending and understanding a Human World without full perfected Humanity. No talent must sleep; and if all are not alike active, all must be alert, and not oppressed and enervated. As we see a future Painter in the boy who fills every wall with sketches and variedly adds colour to figure; so we see a future Philosopher in him who restlessly traces and questions all natural things, pays heed to all, brings together whatever is remarkable, and rejoices when he has become master and possessor of a new phenomenon, of a new power and piece of knowledge.

Pupils at Sais (1799)