suffering harm; a keg of water may be strapped on the back of a
pack-ox or a mule, and be kicked off and trampled on, and be
otherwise misused for years, without giving way.

I do not propose to enter further into the anthropometric
differences of race, for the subject is a very large one, and this
book does not profess to go into detail. Its intention is to touch
on various topics more or less connected with that of the
cultivation of race, or, as we might call it, with "eugenic" [1]
questions, and to present the results of several of my own separate
investigations.




ENERGY.

Energy is the capacity for labour. It is consistent with all the
robust virtues, and makes a large practice of them possible. It is
the measure of fulness of life; the more energy the more abundance
of it; no energy at all is death; idiots are feeble and listless. In
the inquiries I made on the antecedents of men of science no points
came out more strongly than that the leaders of scientific thought
were generally gifted with remarkable energy, and that they had
[2] inherited the gift of it from their parents and grandparents. I
have since found the same to be the case in other careers.

[Footnote 2: That is, with questions bearing on what is termed in
Greek, _eugenes_, namely, good in stock, hereditarily endowed with
noble qualities. This, and the allied words, _eugeneia_, etc., are