Note how, on the 8th of April 1503, I, Leonardo da Vinci, lent to Vante the miniaturist 4 gold ducats in gold; Salai carried them to him and put them into his own hand. He said he would return them to me within the space of 40 days.

Note how, on the said day, I returned to Salai 3 gold ducats, which he said he wished to use to make himself a pair of rose-coloured hose with their trimmings. And I remained owing him 9 ducats, given that he owes me 20 ducats, that is 17 lent at Milan and 3 at Venice.

Note how I gave Salai 21 braccia of cloth to make shirts, at 10 soldi the braccio, which I gave him on the 20th of April 1503.

Although the percussion of the moving body upon its object may be caused by equal powers, it does not therefore follow that their powers are not variable to infinity.

Even though the moving bodies are equal and are brought to the site of the percussion with equal distance and power, it does not follow that such percussion is not in itself variable to infinity.

The percussions made on one and the same object can be variable to infinity, even though they arise from the same impetuses and from the same moving bodies moved through equal distances.

Although the percussions are created on one and the same object, and by the same power of impetus, and by equal moving bodies moved through equal distances to the site of the percussion, it does not therefore follow that their powers cannot be variable to infinity.