"Business, to be successful, must be based on science, for demand and supply are matters of mathematics, not guesswork.

Two-thirds of all preachers, doctors and lawyers are hanging on to the coat tails of progress, shouting, whoa! while a good many of the rest are busy strewing banana peels along the line of march.
Two-thirds of all preachers, doctors and lawyers are hanging on to the coat tails of progress, shout...
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