Often the classics rank among the best. Even though time passes and intellectual fashions change, certain insights and perspectives address something so profound they forever earn a place as a steadfast pillar among sifting seas of opinion. Much of what comes after such a point simply serves as either confirmation, renunciation, clarification, or criticism. Though he lived and labored during the Middle Ages in the 1200's, the cosmological argument of Thomas Aquinas has withstood the test of time as one of those stalwart pillars of the mind pointing to a rational basis for belief in God.