This survival of the fittest which I have here sought to express in mechanical terms, is that which Mr. Darwin has called "natural selection", or the preservation of favoured races in the struggle for life.

In societies of low civilization, there is no money.

It is the function of parents to see that their children habitually experience the true consequences of their conduct.

The forces which are working out the great scheme of perfect happiness, taking no account of incidental suffering, exterminate such sections of mankind as stand in their way, with the same sternness that they exterminate beasts of prey and herds of useless ruminants.

Life is the continuous adjustment of internal relations to external relations.

All socialism involves slavery.

The most important attribute of man as a moral being is the faculty of self-control.