"The passions are the only orators that are always successful in persuading. They are a kind of art in nature, that proceeds upon infallible rules; and the plainest man, with the help of passion, shall prevail more than the most eloquent man without it."
"The passions do very often give birth to others of a nature most contrary to their own. Thus avarice sometimes brings forth prodigality, and prodigality avarice; a man's resolution is very often the effect of levity, and his boldness that of cowardice and fear."
"Those great and glorious actions that dazzle our eyes with their luster are represented by statesmen as the result of great wisdom and excellent design; whereas, in truth, they are commonly the effects of the humors and passions."
"It is very hard to give a just definition of love. The most we can say of it is this: that in the soul, it is a desire to rule; in the spirit, it is a sympathy; and in the body, it is but a hidden and subtle desire to possess--after many mysteries--what one loves."
"One reason why we find so few men of reasonable and agreeable conversation is that there is scarcely anyone whose mind is not more intent upon what he himself has a mind to say than on making pertinent replies to what is being said to him."