To the amoeba, the jelly-fish, or the worm, the "world" is the franchise of an hour in a drop of water; a niche in the rocks for a season; or a home in the sea for a decade. To man, the "world" is the universal whole of time and space, for their content are his to explore and to utilize. And therein lies our measure of freedom and attainment.

The Grand Strategy of Evolution: The Social Philosophy of a Biologist, Chapter IV (p. 90), Richard G. Badger. 1920