There will be no end to the troubles of states,Or of humanity itself,Till philosophers become kings in this world,Or till those we now call kings and rulers really And truly become philosophers
For neither birth, nor wealth, nor honors, can awaken in the minds of men the principles which should guide those who from their youth aspire to an honorable and excellent life, as Love awakens them
That makes me think, my friend, as I have often done before, how natural it is that those who have spent a long time in the study of philosophy appear ridiculous when they enter the courts of law as speakers. Those who have knocked about in courts and the like from their youth up seem to me, when compared with those who have been brought up in philosophy and similar pursuits, to be as slaves in breeding compared with freemen.
Between knowledge of what really exists and ignorance of what does not exist lies the domain of opinion. It is more obscure than knowledge, but clearer than ignorance.
The science [geometry] is pursued for the sake of the knowledge of what eternally exists, and not of what comes for a moment into existence, and then perishes.