"The great body of population dynamics, like those of the motion of the celestial bodies, can be solved—and what is mo…"

"This great body (the social body) subsists by virtue of conservative principles, as does everything which has proceed…"

"Little by little his conversation, always instructive and animated, gave a special direction to my tastes, which woul…"

"The more advanced the sciences have become, the more they have tended to enter the domain of mathematics, which is a …"

"We then better understand the weakness of man, and the power of the Supreme: we are struck with the inflexible consta…"

"The Supreme has then not only spread life and movement throughout, and willed that its impress should be preserved, b…"

"The principal artists of the era of the revival of letters, such as Leon Baptista Alberti, Michael Angelo, Leonardo d…"

"It would be an error... to suppose that science makes the artist; yet it lends to him the most powerful assistance. I…"

"Artists have, for the most part, bound themselves down to follow a blind routine. Noble exceptions, however, have pre…"

"It has seemed to me that the theory (calcul) of probabilities ought to serve as the basis for the study of all the sc…"