There seemed nothing that he could not do. He could make bridges, blow up castles, dig canals, invent a new kind of cannon, build warships, and make underground passages. In days of peace he could design and build houses, make beautiful statues and paint pictures 'as well as any man, be he who he may.'
The letter was written in curious writing from right to left like Hebrew or Arabic. This was how Leonardo always wrote, using his left hand, so that it could only be read by holding the writing up to a mirror.
The Duke was half amazed and half amused when the letter reached him.
'Either these are the words of a fool, or of a man of genius,' said the Duke. And when he had once seen and spoken to Leonardo he saw at once which of the two he deserved to be called.
Every one at the court was charmed with the artist's beautiful face and graceful manners. His music alone, as he swept the strings of the silver lute and sang to it his own songs, would have brought him fame, but the Duke quickly saw that this was no mere minstrel.
It was soon arranged therefore that Leonardo should take up his abode at the court of Milan and receive a yearly pension from the Duke.
Sometimes the pension was paid, and sometimes it was forgotten, but Leonardo never troubled about money matters. Somehow or other he must have all that he wanted, and everything must be fair and dainty. His clothes were always rich and costly, but never bright-coloured or gaudy. There was no plume or jewelled brooch in his black velvet beretto or cap, and the only touch of colour was his golden hair, and the mantle of dark red cloth which he wore in the fashion of the Florentines, thrown across his shoulder. Above all, he must always have horses in his stables, for he loved them more than human beings.
Many were the plans and projects which the Duke entrusted to Leonardo's care, but of all that he did, two great works stand out as greater than all the rest. One was the painting of the Last Supper on the walls of the refectory of Santa Maria delle Grazie, and the other the making of a model of a great equestrian statue, a bronze horse with the figure of the Duke upon its back.
'Year after year Leonardo worked at that wonderful fresco of the Last Supper. Sometimes for weeks or months he never touched it, but he always returned to it again. Then for days he would work from morning till night, scarcely taking time to eat, and able to think of nothing else, until suddenly he would put down his brushes and stand silently for a long, long time before the picture. It seemed as if he was wasting the precious hours doing nothing, but in truth he worked more diligently with his brain when his hands were idle.
Often too when he worked at the model for the great bronze horse, he would suddenly stop, and walk quickly through the streets until he came to the refectory, and there, catching up his brushes, he would paint in one or perhaps two strokes, and then return to his modelling.