Let man then contemplate the whole of nature in her full and grand majesty... No idea approaches it. We may enlarge our conceptions beyond all imaginable space; we only produce atoms in comparison with the reality of things. It is an infinite sphere, the center of which is everywhere, the circumference nowhere.

We must keep our thought secret, and judge everything by it, while talking like the people.

Rivers are roads which move, and which carry us whither we desire to go.

To have no time for philosophy is to be a true philosopher.

The more I see of Mankind, the more I prefer my dog.

He who does not know his way to the sea should take a river for his guide.

The present is never the mark of our designs. We use both past and present as our means and instruments, but the future only as our object and aim.