Judah Halevi,
Kitab al Khazari (Kuzari) — Part One
“ I know already that my soul is pure and that my actions are calculated to gain the favour of God. To all this I received the answer that this way of action does not find favour, though the intention does. There must no doubt be a way of acting, pleasing by its very nature, but not through the medium of intentions. If this be not so, why, then, do Christian and Moslim, who divide the inhabited world between them, fight with one another, each of them serving his God with pure intention, living either as monks or hermits, fasting and praying? ”
