““[The screw machine] was on the principle of the gauge or sliding lathe now in every workshop throughout the world; the perfection of which consists in that most faithful agent gravity, making the joint, and that almighty perfect number three, which is in harmony itself. I was young when I learned that principle. I had never seen my grandmother putting a chip under a three-legged milking-stool; but she always had to put a chip under a four-legged table, to keep it steady. I cut screws of all dimensions by this machine, and did them perfectly. (1846)””
![“[The screw machine] was on the principle of the gauge or sliding lathe now in every workshop throughout the world; the perfection of which consists in that most faithful agent gravity, making the joint, and that almighty perfect number three, which is in harmony itself. I was young when I learned…” quote by David Wilkinson](https://sms4smile.com/quotes/img-quotes/a39/david-wilkinson-191467_computers_the-screw-machine-was-on-the-principle-o_2565617.jpg)
![“Nature, ... in order to carry out the marvelous operations [that occur] in animals and plants has been pleased to construct their organized bodies with a very large number of machines, which are of necessity made up of extremely minute parts so shaped and situated as to form a marvelous organ, the…” quote by Marcello Malpighi](https://sms4smile.com/quotes/img-quotes/701/marcello-malpighi-36588_animals_nature-in-order-to-carry-out-the-marvelo_3124759.jpg)
