Utility is the Test of Virtue

"The wealth required by nature is limited and is easy to procure;
but the wealth required by vain ideals extends to infinity."

"The most well-known Epicurean verse, which epitomizes his philosophy, is "lathe biōsas λάθε βιώσας "(Plutarchus De latenter vivendo 1128c; Flavius Philostratus Vita Apollonii 8.28.12), meaning "live secretly", "get through life without drawing attention to yourself", i. e. live without pursuing glory or wealth or power, but anonymously, enjoying little things like food, the company of friends, etc."

Epicurus, 341-271 BCE

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Lifestyle Advice from Wise Persons

From a Letter to William Short by Thomas Jefferson, 1819

"I take the liberty of observing that you are not a true disciple of our master Epicurus, in indulging the indolence to which you say you are yielding. One of his canons, you know, was that "that indulgence which prevents a greater pleasure, or produces a greater pain, is to be avoided." Your love of repose will lead, in its progress, to a suspension of healthy exercise, a relaxation of mind, an indifference to everything around you, and finally to a debility of body, and hebetude of mind, the farthest of all things from the happiness which the well-regulated indulgences of Epicurus ensure; fortitude, you know is one of his four cardinal virtues. That teaches us to meet and surmount difficulties; not to fly from them, like cowards; and to fly, too, in vain, for they will meet and arrest us at every turn of our road. Weigh this matter well; brace yourself up ..."


Syllabus of the doctrines of Epicurus (By Thomas Jefferson)

"Physical.—The Universe eternal.

Its parts, great and small interchangeable.

Matter and Void alone.

Motion inherent in matter which is weighty and declining.

Eternal circulation of the elements of bodies.

Gods, an order of beings next superior to man, enjoying in their sphere, their own felicities;
but not meddling with the concerns of the scale of beings below them.

Moral.—Happiness the aim of life.

Virtue the foundation of happiness.

Utility the test of virtue.

Pleasure active and In-do-lent.

In-do-lence, is the absence of pain, the true felicity.

Active, consists in agreeable motion; it is not happiness, but the means to produce it.

Thus the absence of hunger is an article of felicity; eating the means to obtain it.

The summum bonum is to be not pained in body, nor troubled in mind.

i.e. In-do-lence of body, tranquillity of mind.

To procure tranquillity of mind we must avoid desire and fear, the two principal diseases of the mind.

Man is a free agent.

Virtue consists in 1) Prudence. 2) Temperance. 3) Fortitude. 4) Justice."