Letter 111 — On the Vanity of Mental Gymnastics (§5)

“I would not forbid you to practise such exercises occasionally; but let it be at a time when you wish to do nothing. The worst feature, however, that these indulgences present is that they acquire a sort of self-made charm, occupying and holding the soul by a show of subtlety; although such weighty matters claim our attention, and a whole life seems scarcely sufficient to learn the single principle of despising life. “What? Did you not mean ‘control’ instead of ‘despise’”? No; “controlling” is the second task; for no one has controlled his life aright unless he has first learned to despise it. Farewell.”