This paper discusses Leibniz's views regarding the compatibility of free will and determinism. Leibniz's explanations regarding the will of God are explores, as well as studying the thoughts of Hume, Augustine, and Aquinas. Due to this, this paper concludes that predestination and free will can, in fact, be very much mutually inclusive. As Leibniz profoundly showed, since man has free will, he is responsible for what he does. God's foreknowledge, therefore, does not, and cannot, impose necessity. 6 pgs. 5 f/c. 5b.