Letters 24.8

So saying, he inflicted a mortal wound upon his body. After the physicians had bound it up, Cato had less blood and less strength, but no less courage; angered now not only at Caesar but also at himself, he rallied his unarmed hands against his wound, and expelled, rather than dismissed, that noble soul which had been so defiant of all worldly power.

Seneca, Letters to Lucilius 24.8, translated by Richard Mott Gummere