Letter from Niccolo Machiavelli to Francesco Vettori, 10 December 1513
On the coming of evening, I return to my house and enter my study; and at the door I take off the day’s clothing, covered with mud and dust, and put on garments regal and courtly; and reclothed appropriately, I enter the ancient courts of ancient men, where, received by them with affection, I feed on that food which only is mine and which I was born for, where I am not ashamed to speak with them and to ask them the reason for their actions; and they in their kindness answer me; and for four hours of time I do not feel boredom, I forget every trouble, I do not dread poverty, I am not frightened by death; entirely I give myself over to them.
And because Dante says it does not produce knowledge when we hear but do not remember, I have noted everything in their conversation which has profited me, and have composed a little work On Princedoms (De principatibus), where I go as deeply as I can into considerations on this subject, debating what a princedom is, of what kinds they are, how they are gained, how they are kept, why they are lost.