In February 1963, the Cambridge faculty of divinity sponsored four lectures on Objections to Christian Belief. In the last of them, Canon Bezzant pointed out that we need a natural theology. He said that ‘the only possible basis for a reasonably grounded natural theology is what we call scientific. The difficulty is that there is no such actuality as “science”; there are many and increasing sciences’. True, but there is such an actuality as a scientific discipline, a scientific attitude and habit of mind, a scientific conscience. To be detached, self-effacing, humble, industrious, co-operative, patient, observant, accurate, truthful, temperate is to be scientific. But why should you be any of these things? Why not be passionate, aggressive, arrogant, lazy, lonely, hasty, purblind, vague, false and lustful? Because the conventions of society chance to forbid these self-indulgences ? They don’t. Perhaps it is that without these high qualities and the discipline that lives upon them you cannot penetrate the mystery of the world we inhabit or discern a meaning in the life we have to live. Why is the world open to Aristotle, Newton, Planck, Einstein and their kind and closed to Tamerlane and Jenghiz Khan? Only through the discipline of science, a moral and even mystical discipline, can the existing universe be induced to yield up its secrets. Moreover the power thus liberated creates a human situation (e.g. the unity of the human race) in which the inferior human virtues such as courage and thrift are all inadequate and we cannot live without faith, hope and charity.