Treating friendship as the most essential pleasure

Invest in the quality of a small number of close friendships as your primary wellbeing strategy.

Why it works

Epicurus called friendship the greatest of all goods and built his entire community around it — the Garden was a group of friends living simply together. His reasoning is now well-supported: the quality and depth of close social relationships is among the strongest predictors of long-term wellbeing and longevity across decades of study. The investment is in depth of connection, not breadth of network.

How to do it

1. Name the three to five people in your life with whom you feel the most genuine ease and mutual care.
2. Calculate how much time you have invested in these relationships in the last month.
3. Schedule at least one genuine, unhurried interaction with each in the next month.
4. Make a habit of checking in with one person from this list each week — not performatively, but genuinely.

Evidence

The Harvard Study of Adult Development — the longest-running study of adult life — found that close relationship quality was the single strongest predictor of flourishing in late life, more than wealth, fame, or achievement. (observational)

Causality is complex — happy, healthy people may more easily maintain close friendships. The association between relationship quality and wellbeing is robust; the specific Epicurean prescription (small circle, depth over breadth) has support but is not the only valid social configuration.

Sources

• Waldinger & Schulz (2023), The Good Life — findings from the Harvard Study of Adult Development

Common mistake

Treating friendship as something that should sustain itself without investment — assuming that old friendships remain close without the time and attention that new friendships require.