the mass of mankind

Viewed generally, there are obviously two ways of increasing the mass of mankind: first, by aiding and maintaining those forces and conditions which tend to increase it;

总体地看，显然有两种增加人类质量的方法：首先，通过支援和维持那些让质量增加的力和条件；

Yet the mass extinction, however remote, that should be concentrating minds is that of mankind.

然而鱼类的大规模灭绝，无论如何遥远，也应该是人类集中精神所要考虑的一件事。

Mankind becomes simply a mass of individual economic units and the only thing separating them is economic success, the natural result of the Darwinian state.

人类成为简单的个别经济单位的群体，唯一的区别只是经济上的成功，这是信奉社会达尔文主义的国家的必然结果。