Meek young men grow up in libraries, believing it their duty to accept the views which Cicero, which Locke, which Bacon, have given, forgetful that Cicero, Locke, and Bacon were only young men in libraries, when they wrote these books.

No one can read the history of astronomy without perceiving that Copernicus, Newton, Laplace, are not new men, or a new kind of men, but that Thales, Anaximenes, Hipparchus, Empodocles, Aristorchus, Pythagorus, Oenipodes, had anticipated them.

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.

Jesus and Shakespeare are fragments of the soul, and by love I conquer and incorporate them in my own conscious domain. His virtue,--is not that mine? His wit,--if it cannot be made mine, it is not wit.

All natural objects make a kindred impression, when the mind is open to their influence.

Let the bird sing without deciphering the song.

The wonder is always new that any sane man can be a sailor.