To a modern reader the connexion at first sight may not be obvious between the activity of the hangman and the productivity of the earth. - James George Frazer

For when a nation becomes civilized, if it does not drop human sacrifices altogether, it at least selects as victims only such wretches as would be put to death at any rate. Thus the killing of a god may sometimes come to be confounded with the execution of a criminal.

It is probably not too much to say that the hope of progress--moral and intellectual as well as material--in the future is bound up with the fortunes of science, and that every obstacle placed in the way of scientific discovery is a wrong to humanity.

For the present we have journeyed far enough together, and it is time to part.