“Was he being devoured by one of those secret rages, all the more terrible because contained, and which only burst forth, with irresistible force, at the last moment?”

“The chance which now seems lost may present itself at the last moment.”

“The colonists had no library at their disposal; but the engineer was a book which was always at hand, always open at the page which one wanted, a book which answered all their questions, and which they often consulted.”

“So is man's heart. The desire to perform a work which will endure, which will survive him, is the origin of his superiority over all other living creatures here below. It is this which has established his dominion, and this it is which justifies it, over all the world.”

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

“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.”

“He who is mistaken in an action which he sincerely believes to be right may be an enemy, but retains our esteem.”