A scrap of knowledge about sublime things is worth more than any amount about trivialities.

He that obstinately denieth the truth before men upon earth, wilfully refuseth his soul's health in heaven.

What can be accomplished by a few principles is not effected by many. But it seems that everything we see in the world can be accounted for by other principles, supposing God did not exist. For all natural things can be reduced to one principle, which is nature, and all voluntary things can be reduced to one principle, which is human reason, or will. Therefore there is no need to suppose God's existence.

Devotion is a certain act of the will by which man gives himself promptly to divine service.

Nothing created has ever been able to fill the heart of man. God alone can fill it infinitely.

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.

Beware the man of a single book.