Man had in the beginning no power of analysis or synthesis approaching that of the spider, or even of the honey-bee; he had acute sensibility to the higher forces. Fire taught him secrets that no other animal could learn; running water probably taught him even more, especially in his first lessons of mechanics; the animals helped to educate him, trusting themselves into his hands merely for the sake of their food, and carrying his burdens or supplying his clothing; the grasses and grains were academies of study.

The Education of Henry Adams (1907)