Introduction : pleasure and the good life -- Goodness and the good life : the Euthydemus -- Pleasure, virtue, and happiness in the Gorgias -- Pleasure as a conditional good in the Phaedo -- Pleasure and moral psychology in Republic IV and IX -- The Philebus, part 1 : virtue, value, and 'likeness to God' -- The Philebus, part 2 : pleasure transformed, or how the necessity of pleasure for happiness is consistent with the sufficiency of virtue for happiness -- Pleasure, value, and moral psychology in the Republic, Laws, and Timaeus -- Epilogue : pleasure and happiness in Plato's Protagoras.