“I believe cats to be spirits come to earth. A cat, I am sure, could walk on a cloud without coming through.”

“The sea does not belong to despots. Upon its surface men can still exercise unjust laws, fight, tear one another to pieces, and be carried away with terrestrial horrors. But at thirty feet b...”

“You cannot oppose reasoning to pride, the principal of all the vices, since, by its very nature, the proud man refuses to listen to it.”

“Science, my boy, is made up of mistakes, but they are mistakes which it is useful to make, because they lead little by little to the truth.”