Patriotism has served at different times as widely different ends as a razor which ought to be used in keeping your face clean and yet may be used to cut your own throat or that of an innocent person.

Parenthood remains the greatest single preserve of the amateur.

I believe the accepted model of capitalism that demands endless growth deserves the blame for the destruction of nature and it should be displaced. Failing that I try to work with those companies and help them change the way they think about our resources.

The noble simplicity in the works of nature only too often originates in the noble shortsightedness of him who observes it.

The scientific observer of Nature is a kind of mystic seeker in the act of prayer.

There is a very remarkable inclination in human nature to bestow on external objects the same emotions which it observes in itself and to find every where those ideas which are most present to it.

The primary and most beautiful of Nature's qualities is motion which agitates her at all times but this motion is simply a perpetual consequence of crimes she conserves it by means of crimes only.

Nature is a temple in which living columns sometimes emit confused words. Man approaches it through forests of symbols which observe him with familiar glances.

Only nature knows how to justly proportion to the fault the punishment it deserves.

What we observe is not nature itself but nature exposed to our method of questioning.