This library is built in the open.
If you spot an error, have a suggestion, or just want to say hello — we’d love to hear from you.

— The foot, from the tip to the heel, fits 2 times from the heel to the knee, that is to say, where the leg bone meets that of the thigh.
— The hand, up to where it meets the arm bone, fits 4 times from the tip of the longest finger to the shoulder joint.
— Note: How aqua vitaeoriginal: "eau-de-vie" - literally "water of life," a high-proof distilled spirit used as a solvent in alchemy and art. gathers within itself all the colors and scents of flowers; and if you wish to make azure, put cornflowers original: "bleuets [?]" into it, and then poppies original: "coquelicots [?]".
— For the figure of Fame, one must paint the entire person covered in tongues instead of feathers, in the shape of a bird. This refers to the classical personification of Fama (Renommée), whose many tongues represent the spreading of rumors and news.
— If... If your body were in proportion to your virtue, you would have no desires in this world.
— You believe in fame and reputation...
— You grow — in reputation — like bread — in the hand — of children. Likely a metaphor for how quickly or easily a reputation can be "consumed" or broken down, or perhaps how it swells like rising dough.
— Water that descends by one inch per hour...
— Definition of force and movement in animals. I say that the said movement is caused by several points of support.
— Force is created by the deflation of muscles and the shortening of muscles that retract, as well as by nerves that tighten as much as the sensation original: "sentiment" requires, which passes through the empty cords. Leonardo and his contemporaries often theorized that nerves were hollow tubes through which "animal spirits" or sensations traveled to trigger movement.