As beavers build dams and bees build hives, human beings have spears. Or take the high intelligence of human beings, the ability to make plans, to transmit information - that was also there before, but that, together with the tools, was not enough to make man special.

Nature is harsh. It doesn't give crowns to those who create the best but to the ones who can destroy the most. Beavers can build dams as much as they want, but bears will always rule the forest.