I shall go on saying in my usual way, ‘My very good friend, you are an Athenian and belong to a city which is the greatest and most famous in the world for its wisdom and strength. Are you not ashamed that you give your attention to acquiring as much money as possible, and similarly with reputation and honour, and give no attention or thought to truth and understanding and the perfection of your soul?’ And should any of you dispute that, and profess that he does care about such things, I won’t let him go straight away nor leave him, but will question and examine and put him to the test … I shall do this to everyone I meet, young or old, foreigner or fellow-citizen.

— Plato, Apology of Socrates