"If we study Nature attentively in its great evolutions as in its minutest works, we cannot fail to recognize the possibility of enchantment--giving to that word its exact significance.

Man does not create forces; he employs the only force that exists and which includes all others namely Motion, the breath incomprehensible of the sovereign Maker of the universe.

Species are too distinctly separated for the human hand to mingle them.

The only miracle of which man is capable is done through the conjunction of two antagonistic substances.

Gunpowder for instance is germane to a thunderbolt.