Be careful how you do one man a pleasure which must needs occasion equal displeasure in another. For he who is thus slighted will not forget, but will think the offence to himself the greater in that another profits by it; while he who receives the pleasure will either not remember it, or will consider the favour done him less than it really was.
Francesco GuicciardiniIf you attempt certain things at the right time, they are easy to accomplish - in fact, they almost get done by themselves. If you undertake them before the time is right, not only will they fail, but they will often become impossible to accomplish even when the time would have been right.
Francesco GuicciardiniHow much luckier than all the rest of mankind are the astrologers who, if they tell one truth among a hundred lies, obtain so much credit that even their lies are believed.
Francesco GuicciardiniWaste no time with revolutions that do not remove the causes of your complaints but simply change the faces of those in charge.
Francesco Guicciardini