"The Buddhists say we come back as animals and they refer to them as lesser beings. Well, animals aren't lesser beings, they're just like us. So I say f*** the Buddhists."
- Björk.

"I am not even an atheist so much as I am an antitheist; I not only maintain that all religions are versions of the same untruth, but I hold that the influence of churches, and the effect of religious belief is positively harmful. Reviewing the false claims of religion, I do not wish, as some sentimental materialists affect to wish, that they were true. I do not envy believers their faith. I am relieved to think that the whole story is a sinister fairy tale; life would be miserable if what the faithful affirmed was actually the case."
- Christopher Hitchens

"If I thought the Jews killed God, I'd worship the Jews."
- Bill Hicks

"Let the ruling classes tremble at a Communist revolution. The proletarians have nothing to lose but their chains. Working men of all countries, unite!"
- Karl Marx

Just some of the good ones, that I could think of now