I would prefer to begin the study of the human heart with reading the lives of individuals; for then the man… — Jean Jacques Rousseau

I would prefer to begin the study of the human heart with reading the lives of individuals; for then the man hides himself in vain, the historian follows him everywhere; he never gives him a moment's grace nor any corner where he can escape the piercing eye of the spectator; and when he thinks he is concealing himself, then it is that the writer shows him up most plainly. "Those who write lives," says Montaigne, "in so far as they delight more in ideas than in events, more in that which comes from within than in that which comes from without, these are the writers I prefer; for this reason Plutarch is in every way the man for me."

Source: Wikiquote · CC BY-SA 4.0