“ The quality and quantity of the force of a man are able to give birth to other forces, which will be proportionally greater as the motions produced by them last longer. ”
Leonardo da Vinci, The Notebooks of Leonardo Da Vinci (1478 – 1519). copy citation
| Author | Leonardo da Vinci |
|---|---|
| Source | The Notebooks of Leonardo Da Vinci |
| Topic | birth quality |
| Date | 1478 – 1519 |
| Language | English |
| Reference | |
| Note | Translated by Jean Paul Richter in 1888 |
| Weblink | http://www.gutenberg.org/cache/epub/5000/pg5000-images.html |
Context
“and this motion, flowing through the limbs of sentient animals, enlarges their muscles. Being enlarged by this current the muscles are shrunk in length and contract the tendons which are connected with them, and this is the cause of the force of the limbs in man.
The quality and quantity of the force of a man are able to give birth to other forces, which will be proportionally greater as the motions produced by them last longer.
[Footnote: Only part of this passage belongs, strictly speaking, to this section. The principle laid down in the second paragraph is more directly connected with the notes given in the preceding section on Physiology.]”
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