Now, let us suppose that people come to you as an intelligent man and ask your opinion about war, for instance: whether it is desirable, whether it is morally justifiable or not. In answer to that terrible question you merely shrug your shoulders and confine yourself to some commonplace, because for you, with your way of thinking, it makes absolutely no difference whether hundreds of thousands of people die a violent death, or a natural one: the results are the same—ashes and oblivion. You and I are building a railway line. What's the use, one may ask, of our worrying our heads, inventing, rising above the hackneyed thing, feeling for the workmen, stealing or not stealing, when we know that this railway line will turn to dust within two thousand years, and so on, and so on. . . . You must admit that with such a disastrous way of looking at things there can be no progress, no science, no art, nor even thought itself.