The case for warfare is much clearer because there are peoples even today who have no warfare. Of these the Eskimo are perhaps the most conspicuous examples, but the Lepchas of Sikkim described by Geoffrey Gorer in Himalayan Village are as good. Once an invention is known and accepted, men do not easily relinquish it. The skilled workers may smash the first steam looms which they feel are to be their undoing, but they accept them in the end, and no movement which has insisted upon the mere abandonment of usable inventions has ever had much success. The people must recognize the defects of the old invention, and someone must make a new one. From instances like these it becomes apparent that an inquiry into the causes of war misses the fundamental point as completely as does an insistence upon the biological necessity of war.