I do not know by what power I think; but well I know that I should never have thought without the assistance of my senses. That there are immaterial and intelligent substances I do not at all doubt; but that it is impossible for God to communicate the faculty of thinking to matter, I doubt very much. I revere the Eternal Power, to which it would ill become me to prescribe bounds. I affirm nothing, and am contented to believe that many things are possible than are usually thought so".

L'homme est libre au moment qu'il veut l'être.

It is clear that the individual who persecutes a man, his brother, because he is not of the same opinion, is a monster.

The discovery of what is true and the practice of that which is good are the two most important aims of philosophy.

The perfect is the enemy of the good.

I do not understand Greek very well," said the giant."Neither do I," said the philosophical mite."Why then," the Sirian retorted, "are you citing some man named Aristotle in the Greek?""Because," replied the savant, "one should always cite what one does not understand at all in the language one understands the least.

Illusion is the first of all pleasures.

Un animalucho con un bonete en la cabeza, que cortando el hilo a todos los filósofos dijo que el sabía el secreto, y se hallaba en la Suma de Santo Tomas; y mirando de pies a cabeza a los dos moradores celestes, les sustentó que sus personas, sus mundos y sus estrellas habían sido creados para el hombre. Al oír tal sandez, nuestros dos caminantes hubieron de caerse uno sobre el otro pareciéndose de una risa inextinguible.

...un animalucho con un bonete en la cabeza, que cortando el hilo a todos los filósofos dijo que el sabía el secreto, y se hallaba en la Suma de Santo Tomas; y mirando de pies a cabeza a los dos moradores celestes, les sustentó que sus personas, sus mundos y sus estrellas habían sido creados para el hombre. Al oír tal sandez, nuestros dos caminantes hubieron de caerse uno sobre el otro pareciéndose de una risa inextinguible.