“The evils of life spring partly from natural causes, partly from men’s hostility to each other. In former times, competition and war were necessary for the securing of food, which could only be obtained by the victors. Now, owing to the mastery of natural forces which science has begun to give, there would be more comfort and happiness for all if all devoted themselves to the conquest of Nature rather than of each other. The representation of Nature as a friend, and sometimes as even an ally in our struggles with other men, obscures the true position of man in the world, and diverts his energies from the pursuit of scientific power, which is the only fight that can bring long-continued well-being to the human race.”