More things are left undone through neglect of duty than through neglect of self-interest.
Francois Alexandre Frederic, duc de la Rochefoucauld-LiancourtThe disabusing a man strongly possessed with an opinion of his own worth is the very same ill office that was done to the fool at Athens, who fancied all the ships that came into the harbor were his own.
Francois Alexandre Frederic, duc de la Rochefoucauld-LiancourtThe highest skill is the true judgment of values.
Francois Alexandre Frederic, duc de la Rochefoucauld-LiancourtNature seems to have treasured up the depth of our mind talents and abilities that we are not aware of; it is the privilege of the passions alone to bring them to light, and to direct us sometimes to surer and more excellent aims than conscious effort could.
Francois Alexandre Frederic, duc de la Rochefoucauld-LiancourtWhat men have given the name of friendship to is nothing but an alliance, a reciprocal accommodation of interest, an exchange of good offices; in it is nothing but a system of traffic, in which self-love always proposes to itself some advantage.
Francois Alexandre Frederic, duc de la Rochefoucauld-Liancourt