"Philebus" by Plato is a Socratic dialogue. Besides Socrates the other interlocutors are Philebus and Protarchus. Philebus, who advocates the life of physical pleasure, hardly participates, and his position is instead defended by Protarchus, who learnt argumentation from Sophists. Socrates proposes there are higher pleasures (such as those of the mind) as well as lower ones, and asks if the best life isn't one that optimally mixes both.
