It is often claimed that belief in God is based on faith, while non-belief is grounded in rationality. This claim is inaccurate. Moral philosopher Carlo Alvaro takes the reader through his philosophical journey--a journey taken with the absolute absence of faith. Through reasoning alone, and with an objective assessment of the classical theistic arguments, Deism takes the reader from disbelief to a particular version of deism. Deism discusses such arguments as the Kalam Cosmological, the asymmetry against the evil-god challenge, the anthropic principle, and the moral. Such arguments lead to the undeniable conclusion that there exists a timeless, space-less, wholly good, and infinitely powerful being endowed with freedom of the will, who brought the universe into existence a finite time ago. An objective appraisal of such arguments leads to the conclusions that atheism is an irrational philosophical position, that God does not interact with humans, at least not during our physical existence on earth, and that God is the best explanation of the objectivity of moral value and duty.