The lessons of science should be experimental also. The sight of a planet through a telescope is worth all the course on astronomy; the shock of the electric spark in the elbow outvalues all theories; the taste of the nitrous oxide, the firing of an artificial volcano, are better than volumes of chemistry.
A man passes for that he is worth. What he is engraves itself on his face, on his form, on his fortunes, in letters of light. Concealment avails him nothing; boasting nothing. There is confession in the glances of our eyes; in our smiles; in salutations; and the grasp of hands.