Knowledge is the only instrument of production That is not subject to the law of diminishing returns. John Maurice Clark More Quotes by John Maurice Clark More Quotes From John Maurice Clark Knowledge is the only instrument of production that is not subject to diminishing returns. John Maurice Clark instrumentsreturnknowledge It takes resolution to go forth from the ease and beautiful simplicity of a well-formed hypothesis and struggle with amorphous facts. John Maurice Clark simplicitystrugglebeautiful
