“Nature has placed in the front part of man, as he moves, all those parts which when struck cause him to feel pain; and this is felt in the joints of the legs, the forehead and the nose, and has been so devised for the preservation of man, because if such pain were not felt in these limbs they would be destroyed by the many blows they receive.” IfsMenFeelsHas BeensWould BePainMovingFeltCausesFrontsHe ManBlowLegsDestroyedNosesPreservationLimbsJointsForeheads Book:Life, art and science, the thoughts of Leonardo Source: Life, art and science, the thoughts of Leonardo
“Galen , in the third section of his book, "The Use of the Limbs," says correctly that it would be in vain to expect to see living beings formed of the blood of menstruous women and the semen virile, who will not die, will never feel pain, or will move perpetually, or shine like the sun. This dictum of Galen is part of the following more general proposition: Whatever is formed of matter receives the most perfect form possible in that species of matter; in each individual case the defects are in accordance with that individual matter.” FeelsBookMatterUseWould BePainMovingFormDiesIndividualPerfectCasesSunBloodThirdsShiningSpeciesFollowingVainSectionsPropositionsDefectsLimbsGalen Book:The Guide for the Perplexed Source: The Guide for the Perplexed