Letters 78.2

I often entertained the impulse of ending my life then and there; but the thought of my kind old father kept me back. For I reflected, not how bravely I had the power to die, but how little power he had to bear bravely the loss of me. And so I commanded myself to live. For sometimes it is an act of bravery even to live.

Seneca, Letters to Lucilius 78.2, translated by Richard Mott Gummere