All art is but imitation of nature. - Seneca

Unbroken prosperity cannot bear a single blow.

Clothe yourself with a hero’s courage, and withdraw for a little space from the opinions of the common man. Form a proper conception of the image of virtue, a thing of exceeding beauty and grandeur; this image is not to be worshipped by us with incense or garlands, but with sweat and blood.

To animals not only human virtues but even human vices are forbidden: their whole constitution, mental and bodily, is unlike that of human beings...they possess intellect, the greatest attribute of all, but in a rough and inexact condition. It is, consequently, able to grasp those visions and semblances which rouse it to action, but only in a cloudy and indistinct fashion. Their impulses and outbreaks are violent, and that they do not feel fear, anxieties, grief, or anger, but some semblances of these feelings: wherefore they quickly drop them and adopt the converse of them: they graze after showing the most vehement rage and terror, and after frantic bellowing and plunging they straightaway sink into quiet sleep.