"Three things are necessary for the salvation of man: to know what he ought to believe; to know what he ought to desire; and to know what he ought to do."
"Law: an ordinance of reason for the common good, made by him who has care of the community."
"Reason in man is rather like God in the world."
"The most hopeful people in the world are the young and the drunk. The first because they have little experience of failure, and the second because they have succeeded in drowning theirs."
"Man cannot live without joy; therefore when he is deprived of true spiritual joys it is necessary that he become addicted to carnal pleasures."
"Music is the exaltation of the mind derived from things eternal, bursting forth in sound."
"One cannot use an evil action with reference to a good intention."
"The reason, however, why the philosopher may be likened to the poet is this: both are concerned with the marvellous."
"Sorrow can be alleviated by good sleep, a bath and a glass of wine."
"That the saints may enjoy their beatitude and the grace of God more abundantly they are permitted to see the punishment of the damned in hell. "
"If forgers and malefactors are put to death by the secular power, there is much more reason for excommunicating and even putting to death one convicted of heresy."
"Beware the man of one book."
