Letter 29 — On the Critical Condition of Marcellinus (§3)

“This very thing, my dear Lucilius, is, I believe, exactly what a great-souled man ought not to do; his influence is weakened; it has too little effect upon those whom it might have set right if it had not grown so stale. The archer ought not to hit the mark only sometimes; he ought to miss it only sometimes. That which takes effect by chance is not an art. Now wisdom is an art; it should have a definite aim, choosing only those who will make progress, but withdrawing from those whom it has come to regard as hopeless,—yet not abandoning them too soon, and just when the case is becoming hopeless trying drastic remedies.”