“Live for others”: such is the supreme formula of positive ethics. Feeling bears witness to its justice; science discloses its far-reaching importance and its deep consequences. But this formula is not only applied in a general way to the natural society formed by men among themselves, a society in which Comte even includes animals capable of affection and of devotion, whose services deserve our gratitude. The moral law finds a precise application in the definite relations established among men by civic society, that is............