"People of the same trade seldom meet together even for merriment and diversion but the conversation ends in a conspiracy against the public or in s...

By pursuing his own interest (the individual) frequently promotes that of the society more effectually than when he really intends to promote it. I have never known much good done by those who affected to trade for the public good.
By pursuing his own interest (the individual) frequently promotes that of the society more effectual...
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