Letters 43.5

A good conscience welcomes the crowd, but a bad conscience, even in solitude, is disturbed and troubled. If your deeds are honourable, let everybody know them; if base, what matters it that no one knows them, as long as you yourself know them? How wretched you are if you despise such a witness! Farewell.

Seneca, Letters to Lucilius 43.5, translated by Richard Mott Gummere