“Every fool stands convinced; and everyone convinced is a fool. The faultier a person's judgement the firmer their convictions.”

“A wise man gets more use from his enemies than a fool from his friends.”

“Folly consists not in committing Folly, but in being incapable of concealing it. All men make mistakes, but the wise conceal the blunders they have made, while fools make them public. Reputation depends more on what is hidden than on what is seen. If you can’t be good, be careful.”

“Harness the imagination: Sometimes curbing her, sometimes giving her rein, for she is the whole of happiness. She sets to rights even the understanding. She sinks to tyranny, not satisfied with mere faith, but demanding works. Thus she becomes the mistress of life itself. She does so with pleasure or with pain, according to the nonsense presented. She makes people contented or discontented with themselves. By dangling before some nothing but the specter of their eternal suffering, she becomes the scourge of these fools. To others she shows nothing but fortune and romance, while merrily laughing. Of all this she is capable if not held in check by the wisest of wills.”

“A person of your century: Great persons are of their time. Not all were born into a period worthy of them, and many so born failed to benefit by it. Some merited a better century, for all that is good does not always triumph. Fashions have their periods and even the greatest virtues, their styles. But the philosopher, being ageless, has one advantage: Should this not prove the right century, many to follow will.”

“Nature and art: The material and the workmanship. There is no beauty unaided, no excellence that does not sink to the barbarous, unless saved by art: It redeems the bad and perfects the good. Because nature commonly forsakes us at her best, take refuge in art. The best in nature is raw without art, and the excellent is lacking if it lacks culture. Without cultivation everyone is a clown and needs polish, fine attributes notwithstanding.”

“Never exaggerate. It is a matter of great importance to forego superlatives, in part to avoid offending the truth, and in part to avoid cheapening your judgment. Exaggeration wastes distinction and testifies to the paucity of your understanding and taste. Praise excites anticipation and stimulates desire. Afterwards when value does not measure up to price, disappointment turns against the fraud and takes revenge by cheapening both the appraised and the appraise. For this reason let the prudent go slowly, and err in understatement rather than overstatement. The extraordinary of every kind is always rare, wherefore temper your estimate.”