Seneca

“ Just so, there are not many who have access to you to slay you, though there are many who threaten you with death. Nature has so ordered it that, as only one has given you life, so only one will take it away. ”

“ 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.
4. As to our friend Marcellinus, I have not yet lost hope. He can still be saved, but the helping hand must be offered soon. There is indeed danger that he may pull his helper down ”

“ Nevertheless I shall brave this danger and be bold enough to show him his faults. 5. He will act in his usual way; he will have recourse to his wit, – the wit that can call forth smiles even from mourners. He will turn the jest, first against himself, and then against me. He will forestall every word which I am about to utter. He will quiz our philosophic systems; he will accuse philosophers of accepting doles, keeping mistresses, and indulging their appetites. ”

“ It takes trickery to win popular approval; and you must needs make yourself like unto them; they will withhold their approval if they do not recognize you as one of themselves. However, what you think of yourself is much more to the point than what others think of you. The favour of ignoble men can be won only by ignoble means. ”

“ Even though I shall not root out his faults, I shall put a check upon them; they will not cease, but they will stop for a time; and perhaps they will even cease, if they get the habit of stopping. This is a thing not to be despised, since to men who are seriously stricken the blessing of relief is a substitute for health. ”