Letters 76.31

None of those whom you behold clad in purple is happy, any more than one of these actors upon whom the play bestows a sceptre and a cloak while on the stage; they strut their hour before a crowded house, with swelling port and buskined foot; but when once they make their exit the foot-gear is removed and they return to their proper stature. None of those who have been raised to a loftier height by riches and honours is really great. Why then does he seem great to you? It is because you are measuring the pedestal along with the man. A dwarf is not tall, though he stand upon a mountain-top; a colossal statue will still be tall, though you place it in a well.

Seneca, Letters to Lucilius 76.31, translated by Richard Mott Gummere