There is a spirit and a need and a man at the beginning of every great human advance. Each of these must be right for that particular moment of history or nothing happens.

When old words die out on the tongue, new melodies break forth from the heart; and where the old tracks are lost, new country is revealed with its wonders.

The history of mankind's battle forward through bloodshed is like the formation of coal, where a great deal of wood is needed to produce a small amount of coal.