Happiness factors  (Epicurus, Jean Paul Sartre, Alain de Botton, Anthony Trollope, D.H.Lawrence)

1. Health   2. Freedom   3. Thought   4. Sense of Purpose

5. Family  6. Friendship   7. Environment

Darwinian Happiness (Bjorn Grinde)
The U-bend of Life (The Economist)

The Four Phases of Life (Michael Furstner)

The triplicity of Beauty - Truth - Happiness   (John Keates, Stendahl, Michael Furstner)