He for the most pa rt, for sure, neither means to advance the public interest, nor knows the amount he is advancing it. Flv leaning toward the help of homegrown to that of unfamiliar industrv, he plans just his own security; and by coordinating that industry[ in such a was,' as its produce might be of the best worth, he means just his own benefit, and he is in this, as in numerous different cases, drove bv an imperceptible hand to advance an end which was no essential for his aim. Nor is it generally,r the more awful for the general public that it was no important for it. By chasing after his own advantage he much of the time advances that of the general public more via bl'yr than when he trulv expects to advance it.[56]