Religious leaders and men of science have the same ideals; they want to understand and explain the universe of which they are part; they both earnestly desire to solve, if a solution be ever possible, that great riddle: Why are we here?

Whichever theory we adopt to give a rational explanation of human existence, that theory must take into account and explain the mental nature we see at work in all modern communities.

A drunkard is one thing, and a temperate man is quite another.

This world of ours has been constructed like a superbly written novel: we pursue the tale with avidity, hoping to discover the plot.

The main force used in the evolving world of humanity has hitherto been applied in the form of war.

Civilization, we shall find, like Universalism and Christianity, is anti evolutionary in its effects; it works against the laws and conditions which regulated the earlier stages of man's ascent.

Before the discovery of agriculture mankind was everywhere so divided, the size of each group being determined by the natural fertility of its locality.