But, great as were individual ambitions, and the vanities of nobles and knights, it remains a fact that the Italian nobility took its place in the centre of social life, and not at the extremity. We find it habitually mixing with other classes on a footing of perfect equality, and seeking its natural allies in culture and intelligence. It is true that for the courtier a certain rank of nobility was required, but this exigence is expressly declared to be caused by a prejudice rooted in the public mind - 'per l'opinion universale' - and never was held to imply the belief that the personal worth of one who was not of noble blood was in any degree lessened thereby, nor did it follow from this rule that the prince was limited to the nobility for his society. It meant simply that the perfect man - the true courtier - should not be wanting in any conceivable advantage, and therefore not in this. If in all the relations of life he was specially bound to maintain a dignified and reserved demeanor, the reason was not found in the blood which flowed in h-s veins, but in the perfection of manner which was demanded from him. We are here in the presence of a modern distinctiori, based on culture and on wealth, but on the latter solely because it enables men to devote their life to the former, and effectually to promote its interests and advancement.