Love is no assignment for cowards. - Ovid

Frightened, he runs off to the silent fields
and howls aloud, attempting speech in vain;
foam gathers at the corners of his mouth;
he turns his lust for slaughter on the flocks,
and mangles them, rejoicing still in blood.
His garments now become a shaggy pelt;
his arms turn into legs, and he, to wolf
while still retaining traces of the man:
greyness the same, the same cruel visage,
the same cold eyes and bestial appearance. ~ The story of King Lycaon from Ovid's Metamorphosis, Book I, ll. 321-331 tr. Charles Martin

No species remains constant: that great renovator of matter
Nature, endlessly fashions new forms from old: there’s nothing in the whole universe that perishes, believe me; rather it renews and varies its substance. What we describe as birth is no more than incipient change from a prior state, while dying
is merely to quit it. Though the parts may be transported hither and thither, the sum of all matter is constant.

Quem põe ponto final numa paixão com o ódio, ou ainda ama, ou não consegue deixar de sofrer.