To give vent now and then to his feelings, whether of pleasure or discontent, is a great ease to a man's heart.
Francesco GuicciardiniKeep your eye fixed not so much on what they [people] ought in reason to do, as on what they are likely to do based on their disposition and habits.
Francesco GuicciardiniAmbition is not in itself an evil; nor is he to be condemned whose spirit prompts him to seek fame by worthy and honourable ways.
Francesco GuicciardiniLet no one trust so entirely to natural prudence as to persuade himself that it will suffice to guide him without help from experience.
Francesco Guicciardini