There was once a Spanish king who was shown how complicated the structure of the universe is. He thought he would have made it simpler. A man may think like this, but, as a matter of fact, the world is not simple, and we must exert ourselves somewhat to grasp what man is.
Source: Rudolf Steiner – GA 234 – Anthropososophy, an Introduction – 5. Love, Intuition and the Human Ego – Dornach, 2 February 1924
Translated by V. Compton Burnett. Second English edition edited by Owen Barfield.