The eldest of Gian Francesco's children, Lodovico, was a youth of lazy habits, inclined to gluttony, and already too fat for his age. The next, Carlo, had outgrown his strength, and needed more substantial food. Vittorino devised systems of diet and physical training suited to their several temperaments, making it his one object to increase their vigour, and by multiplying sources of rational enjoyment to dispose them to the energetic exercise of their faculties. He by no means neglected what we call athletics. Indeed, it was a fundamental axiom of his method that a robust body could alone harbour a healthy mind. Boys who sat poring over books, or haunted solitary places, lost in dreaming, found no favour in his eyes. To exercises in the gymnasium or the riding-school he preferred games in the open air; hunting and fishing, wrestling and fencing, running and jumping, were practised by his pupils in the park outside their palace. To harden them against severities of heat and cold, to render them temperate in food and drink, to train their voices, and to improve their carriage was his first care. Since he could not himself superintend their education in all its branches, he engaged a subordinate staff of tutors; grammarians, logicians, mathematicians, painters, and masters of riding, dancing, singing, swimming, fencing, began to crowd the halls of Joyous Gard. Each had his own allotted task to perform, while Vittorino surveyed the whole scheme. 'Perhaps,' says Rosmini,[290] 'the only sciences that were not taught in this academy were civil and canon law and natural physics.' [Footnote 290: P. 111.] It must not be imagined that so extensive an apparatus existed solely for the young Gonzaghi. Noble youths from all the Courts of Italy, and students from remote parts of Europe, sought admittance to Vittorino's school. The more promising of these pupils, who were fitted by their rank and disposition to associate with his princely charges, the master housed under his own roof; while for the rest he provided suitable lodgings near at hand. Many were the poor students who thus owed to his generosity participation in the most refined and scientific culture their century afforded.[291] While paying this tribute to Vittorino da Feltre, we must remember the honour that is also due to Gian Francesco Gonzaga. Had this prince not been endowed with true liberality of soul and freedom from petty prejudice, Vittorino could never have developed a system based upon pure democratic principles, which even now may rank as an unrivalled educational ideal. If the master, again, was able to provide for sixty poor scholars at a time--teaching, feeding, clothing, and furnishing them with costly books, his friend the Marquis must, we feel sure, have supplied his purse with extra funds for charitable purposes.[292]