Seneca · On the diseases of the soul
Letters 75.15
Let us reflect a moment on this topic. It will be well with us if we are admitted to this class. The second stage is gained by great good fortune with regard to our natural gifts and by great and unceasing application to study. But not even the third type is to be despised. Think of the host of evils which you see about you; behold how there is no crime that is not exemplified, how far wickedness advances every day, and how prevalent are sins in home and commonwealth. You will see, therefore, that we are making a considerable gain, if we are not numbered among the basest.
Seneca, Letters to Lucilius 75.15, translated by Richard Mott Gummere