In whatever form the distinction is met with it harbours a fallacy. Intellectual activity is not and cannot be divorced from emotion. There are states of mind in which feeling predominates, and there are others in which reason predominates. But all intellectual states involve a feeling element. The often-made remark that feeling and intellect are in conflict is true only in the sense that ultimately certain intellectual states, _plus_ their associated feelings, are in conflict with other intellectual states plus _their_ associated feelings. To realise this one need only consider the sheer pleasure that results from the rapid sweep of the mind through a lengthy chain of reasoning, and the positive pain that ensues when the terms of a proposition baffles comprehension. The force of this is admitted by Prof. Thomson in the remark that man at the limit of his endeavour has fallen back on religion. Quite so; that is the painful feelings evoked by an intellectual failure have thrown a certain type of mind back on religion. In this they have acted like one who flies to a drug for relief from a pain he lacks the courage to bear. They take a narcotic when, often enough, the real need is for a stimulant. In sober truth religion is no more necessarily connected with the emotions than are other subjects of investigation. Those who have made the pursuit of "cold scientific truth" their life's work have shown every whit as much ardour and passion as those who have given their life to religion. The picture of man sacrificing himself in the cause of religion is easily matched by a Vesalius haunting the charnel houses of Europe, and risking the most loathsome diseases in the interests of scientific research. The abiding passion for truth in a character such as that of Roger Bacon or Bruno easily matches the enthusiasm of the missionary monk. The passion and the enthusiasm for science is less advertised than the passion and the enthusiasm for religion, but it is quite as real, and certainly not less valuable. The state of mind of Kepler on discovering the laws of planetary motion was hardly less ecstatic than that of a religious visionary describing his sense of "spiritual" communion. Only in the case of the scientist, it is emotion guided by reason, not reason checked and partly throttled by emotion.