ABSTRACT
Progress consists in performing a function with greater ease or with greater proficiency or efficiency, and in doing something desirable. The test of desirability is more difficult to, apply than that of efficiency, for that which is desired may not be desirable, and that which is wanted may satisfy no actual need. The desirability of a thing depends, moreover, upon contingencies which ramify indefinitely. That which is desirable, all things considered, is the final test of progress. But all things cannot be considered. No one, therefore, can know what is really most desirable. Yet it may be possible, although an element of error intrudes, to discover the more desirable.
