Seneca · On groundless fears
Letters 13.15
I am exhorting you far too long, since you need reminding rather than exhortation. The path on which I am leading you is not different from that on which your nature leads you; you were born to such conduct as I describe. Hence there is all the more reason why you should increase and beautify the good that is in you.
Seneca, Letters to Lucilius 13.15, translated by Richard Mott Gummere