Islame
Here are some more (I've been stocking up)
"What, if some day or night a voice were to steal after you into your loneliest loneliness and say to you: 'This life as you now live it and have lived it, you will have to live once more and innumerable times more' ... Would you not throw yourself down and gnash your teeth and curse the demon who spoke thus? Or have you once experienced a tremendous moment when you would have answered him: 'You are a god and never have I heard anything more divine."
~Friedrich Nietzsche
"It’s an incredible con job when you think about it, to believe something now in exchange for something after death. Even corporations with their reward systems don’t try to make it posthumous."
~Gloria Steinem
"Every pulpit is a pillory, in which stands a hired culprit, defending the justice of his own imprisonment."
~Robert Green Ingersoll