Men in rage strike those that wish them best.

By heaven, I'll make a ghost of him that lets me.

I was angry with my friend:
I told my wrath, my wrath did end.
I was angry with my foe:
I told it not, my wrath did grow.

I am very proud, revengeful,
ambitious, with more offences at my beck than I have
thoughts to put them in, imagination to give them shape,
or time to act them in.

Blow, winds, and crack your cheeks! rage! blow!

Anger is useful only to a certain point. After that, it becomes rage, and rage will make you careless.