Description:Denys Turner argues that there are reasons of faith why the existence of God should be thought rationally demonstrable and that it is worthwhile revisiting the theology of Thomas Aquinas to see why. The proposition that the existence of God is demonstrable by rational argument is doubted by nearly all philosophical opinion today and is thought by most Christian theologians to be incompatible with Christian faith. Turner's robust challenge to the prevailing orthodoxies will be of interest to believers as well as non-believers.