The whole world has summed up the life of Darwin. No man has departed more sincerely mourned, - no man's life has been more useful, - few men have left the world whom it will be as slow to forget. For many ages the name of Darwin will be honored as the one man above all others who taught us how to talk with Nature. If it should prove that he did not always interpret her language correctly, it will not be the less to his credit. No one before him did what he has done. Others may learn more, but only by following in his footsteps.