It stands to the everlasting credit of science that by acting on the human mind it has overcome man's insecurity before himself and before nature.

The universe really is motion & nothing else.

We behold the face of nature bright with gladness.

He who is not content to look, like a savage, at the phenomena of nature as disconnected, cannot any longer believe that man is the work of a separate act of creation ... Man is the co-descendant with other mammals of a common progenitor.

I believe there exists, & I feel within me, an instinct for the truth, or knowledge or discovery, of something of the same nature as the instinct of virtue, & that our having such an instinct is reason enough for scientific researches without any practical results ever ensuing from them.

The faster you go, the shorter you are.