Letters 71.22

At this moment the man who measures the souls of all men by his own is shaking his fist in my face because I hold that there is a parity between the goods involved in the case of one who passes sentence honourably, and of one who suffers sentence honourably; or because I hold that there is a parity between the goods of one who celebrates a triumph, and of one who, unconquered in spirit, is carried before the victor’s chariot. For such critics think that whatever they themselves cannot do, is not done; they pass judgment on virtue in the light of their own weaknesses.

Seneca, Letters to Lucilius 71.22, translated by Richard Mott Gummere