=The Economic Motives.=—Self-preservation is the first law of nature. The primeval instinct in man is to look out for himself, to protect himself from hunger, thirst, and hardship. This, for the moment, is more important to him than the satisfaction of his social and civic needs. Hence the economic motive, the instinct which prompts him to seek the means of getting a living, is extremely strong. This instinct the lower animals possess as well, but it does not carry them beyond the satisfaction of elementary wants. The birds of the air and the beasts of the fields have never enlarged or raised the scale of their needs beyond the simple requirements of food, drink, and shelter. No matter how easily obtainable these become they make no progress to anything higher. But mankind, endowed with superior mental faculties and a spiritual nature, does not rest content with the easy earning of a livelihood. The economic motive prompts men and women to move on, to achieve wealth, to procure luxuries, and to gain such happiness as the possession of worldly goods can bring. This economic motive, deeply implanted in humanity, has been a great incentive to progress in civilization,—probably the greatest of all incentives. [Sidenote: The altruistic motive.] Let it not be assumed, however, that because the economic motive is strong in man he is an altogether selfish creature. There is also an altruistic motive which impels him to help his fellow-men, even at personal sacrifice. Men desire to gain wealth for themselves, but having gained enough and to spare, they frequently devote much of it to the assistance of those who have not been so fortunate. The higher our civilization the more marked does this spirit of altruism or economic unselfishness become. [Sidenote: Economic goods.]