In effect the history of Life resembles the life history of the smallest things we know of, the electrons, and the largest, the great suns and stars of space.  The electron begins, perhaps, as a swirl in the primeval ether, joins other electrons, forms colonies, cities, empires, elements of an increasing complexity, through stages of a relative stability, like lead or gold.  Until it reaches the stage of integration which wills its own disintegration, that we have been taught to look upon with proper awe and reverence as radium.  And we are told that nebulae wander until they collide and give birth to stars, stars wander and collide and give birth to nebulae.  Life begins as a quivering colloid, goes on painfully to build a brain, which automatically refines itself to the point of discovering and using the most efficient methods of destroying others, and by a boomerang effect, itself.  Fate!

The conception of Fate was a Greek idea.  The classic formula for tragedy, the struggle of Man with the sequence of cause and effect within him and without, that is so utterly beyond his grasp and ken, or power to modify, originated with them.  But they must also be given the credit for having conceived an idea and started a process which, at first slowly and gropingly, now slipping and falling, torn and bleeding among the thorns of the dark forest of human motives, presently goes on, with a firmer, more practiced, more confident step, to emerge into the light as the deliberate Conqueror of Fate.  That idea-process, this Anti-Fate is Science.

Science began with the adventures of free-thinking speculators, who revolted against religious cosmogonies and superstitions.  Sceptics concerning the knowledge that was the accepted monopoly of the priesthood must have existed in the oldest civilization we know anything of, more than twenty-five thousand years ago, the Aurignacians.  But it was to the Greeks that we owe that amalgamation of curiosity delivered of fear, that merger of systematic research and critical thinking untrammelled by social inhibitions which is the essence of modern science.  Out of them has come the great Tree of Knowledge of our time, which is, too, the only Ygdrasil of Life, undying because it lives upon successive generations of human brain cells.

Science, as the pursuit of the real, began with very small things by men with very small intentions.  Inventories, collections of isolated data, something permanent for the mind out of the flux of transient sensations, little tracks and foot paths in the jungle of phenomena, were their goal.  With no sense of themselves as the mightiest of master-builders, cultivating humility toward their material at any rate, the little men ploughed their little fields, striking the oil of a great generalization or classification or explanation with no fanfare of trumpets.