We do not yet trust the unknown powers of thought. Whence came all these tools, inventions, book laws, parties, kingdoms? Out of the invisible world, through a few brains. The arts and institutions of men are created out of thought. The powers that make the capitalist are metaphysical, the force of method and force of will makes trade, and builds towns.
Ralph Waldo EmersonPrudence is the virtue of the senses. It is the science of appearances. It is the outmost action of the inward life.
Ralph Waldo Emerson