If sensuality be our only happiness we ought to envy the brutes, for instinct is a surer, shorter, safer guide to such happiness than reason.

Those that know the least of others think the highest of themselves.

Love may exist without jealousy, although this is rare: but jealousy may exist without love, and this is common; for jealousy can feed on that which is bitter no less than on that which is sweet, and is sustained by pride as often as by affection.

That politeness which we put on, in order to keep the assuming and the presumptuous at a proper distance will generally succeed. But it sometimes happens that these obtrusive characters are on such excellent terms with themselves that they put down this very politeness to the score of their own great merits and high pretensions, meeting the coldness of our reserve with a ridiculous condescension of familiarity, in order to set us at ease with ourselves.

Vanity finds in self-love so powerful an ally that it storms, as it were, by a coup de main,, the citadel of our heads, where, having blinded the two watchmen, it readily descends into the heart.

Secrecy is the soul of all great designs. Perhaps more has been effected by concealing our own intentions than by discovering those of our enemy.

The enthusiast has been compared to a man walking in a fog; everything immediately around him, or in contact with him, appears sufficiently clear and luminous; but beyond the little circle of which he himself is the centre, all is mist and error and confusion.