Bitterness is cancer – it eats upon the host. It doesn’t do anything to the object of its displeasure.

We are the first species capable of self-annihilation.

No evil dooms us hopelessly except the evil we love, and desire to continue in, and make no effort to escape from.

Self-conceit may lead to self destruction.

Heat not a furnace for your foe so hot that it do singe yourself.