In the supremacy of self-control consists one of the perfections of the ideal man.

Science is organized knowledge.

It is a mistake to assume that government must necessarily last forever. The institution marks a certain stage of civilization-is natural to a particular phase of human development. It is not essential, but incidental. As amongst the Bushmen we find a state antecedent to government, so may there be one in which it shall have become extinct.

If a single cell, under appropriate conditions, becomes a man in the space of a few years, there can surely be no difficulty in understanding how, under appropriate conditions, a cell may, in the course of untold millions of years, give origin to the human race.

Marriage: A word which should be pronounced "mirage".

Those who have never entered upon scientific pursuits know not a tithe of the poetry by which they are surrounded.

Civilization is a progress from an indefinite, incoherent homogeneity toward a definite, coherent heterogeneity.