Industry entirely left to itself, would soon fall to ruin, and a nation letting everything alone would commit suicide.
Friedrich ListThe concentration and reciprocal effect of industry and agriculture conjoin in a growth of productive powers, which increases more in geometrical than in arithmetical proportion.
Friedrich ListAn individual, in promoting his own interest, may injure the public interest; a nation, in promoting the general welfare, may check the interest of a part of its members.
Friedrich ListOnly now did I recognize the reciprocal relationship which exists between manufacturing power and the national system of transportation, and that the one can never develop to its fullest without the other.
Friedrich List