I think that it's okay to be mad at someone who hurt you. This isn't about, like, the pageantry of trying to seem like nothing affects you.
Most men are within a finger's breadth of being mad.
There are worse things than being mad.
I'm very much afraid of being mad - that's my one fear.
If you're going to be mad, at least let the people know what you're mad about.
Women who are inclined to write poetry at all are inspired by being mad at something.
It's not about being mad at everything. It's about being really mad at the right things.
For to define true madness, What is't but to be nothing else but mad?
There is a pleasure in being mad which none but madmen know.
I'm a very sympathetic person, but that doesn't always come across in my work because I'm too busy being mad at everything.