Reinhold Niebuhr said this quote

God, grant me the serenity to accept the things I cannot change, the courage to change the things I can, and the wisdom to know the difference.

~ Reinhold Niebuhr

Religion, declares the modern man, is consciousness of our highest social values. Nothing could be further from the truth. True religion is a profound uneasiness about our highest social values.

~ Reinhold Niebuhr

Religion is so frequently a source of confusion in political life, and so frequently dangerous to democracy, precisely because it introduces absolutes into the realm of relative values.

~ Reinhold Niebuhr

Rationality belongs to the cool observer, but because of the stupidity of the average man, he follows not reason, but faith, and the naive faith requires necessary illusion and emotionally potent oversimplifications which are provided by the myth-maker to keep ordinary person on course.

~ Reinhold Niebuhr