Meanwhile, scientific men must be charitable; they must believe the best. If science is to become an integral part of culture, scientific men must help to make this possible. We believe that much of the present interest in science is genuine; that it springs from a serious attempt on the part of many people to find out what science can tell them about themselves and the Universe they live in. Science is not hunted purely for its dividend-earning capacities or for its power of providing new thrills. Einstein, we understand, is suspicious of the popular interest his theory has evoked; “a mere fashion,” he says. And doubtless his suspicion is largely justified. But we believe there is more in it than that--that there are many who, besides valuing the delightful dreams of the poets and philosophers, have an affection for _knowledge_. And when they find that the constructions of science are not one whit less delightful than the dreams of the poets, this affection may give rise to a permanent attachment. And with these new objects of interest will come a change in values. Men will learn to differentiate in their beliefs between those which are mere indulgences of emotion and those which correspond to objective truth. This is the path by which the mind becomes mature. It may not be, in all stages, a pleasant process, but it leads to increased freedom and increased power. The impossible will no longer be attempted, but the region of the possible will be seen to be vastly greater. Man will see in what directions he can shape his destiny, and he will be able to enter on the task with a rational hope. All his courage and endurance will have a chance of victorious achievement; he will know that he is not engaged in a forlorn hope; the world will become young again. THE RETURN OF MYSTERY “It is a universal condition of the enjoyable that the mind must believe in the existence of a law and yet have a mystery to move about in.”--JAMES CLERK MAXWELL.