“The simplest schoolboy is now familiar with truths for which Archimedes would have sacrificed his life.”

“Jealousy is the foundation of equality, but not of liberty ; putting man constantly on his guard against the encroachments of his neighbors. It prevents affability between different classes. There is no society without affection, without tradition, without respect, without mutual amenity.”

“What is human life? Is it not a maimed happiness—care and weariness, weariness and care, with the baseless expectation...of a brighter tomorrow?”

“O Lord, if there is a Lord, save my soul, if I have a soul...”

“Man makes holy what he believes, as he makes beautiful what he loves.”

“Para obrar de acuerdo a este mundo, hay que morir dentro de uno mismo. El hombre no está en este mundo para ser feliz ni honrado, está en él para realizar grandes cosas para la humanidad, para alcanzar la nobleza y sobreponerse a la vulgaridad del ambiente en que se desarrolló la existencia de la mayoría de los individuos”

“There are some things which cannot be learned quickly, and time, which is all we have, must be paid heavily for their acquiring. They are the very simplest things and because it takes a man's life to know them the little that each man gets from life is very costly and the only heritage he has to leave.”