The senses collect the surface facts of matter... It was sensation; when memory came, it was experience; when mind acted, it was knowledge; when mind acted on it as knowledge, it was thought.

Blame is safer than praise

You can take better care of your secret than another can.

Wise men are not wise at all times.

Plants are the young of the world, vessels of health and vigor; but they grope ever upward towards consciousness; the trees are imperfect men, and seem to bemoan their imprisonment, rooted in the ground.

The senses interfere everywhere, and mix their own structure with all they report of.

Nature is what you may do. There is much you may not do.