I’ve been reading the Notebooks of Leonardo Da Vinci on the web one-page-a-day, but so far, if I dare say so, it’s been a bit crap.
Regardless of its place in the history of Western Art/Thought/Science, it reminded me of a school physics lesson - “The light from point A shall be seen to illuminate point B”.
And reading it in this way means you don’t even get to see the sketches.
Today though, it really came into its own.
How about this for poetry (page 121):
“Shadow is the diminution alike of light and of darkness, and stands
between darkness and light.
A shadow may be infinitely dark, and also of infinite degrees of
absence of darkness.
The beginnings and ends of shadow lie between the light and darkness
and may be infinitely diminished and infinitely increased. Shadow is
the means by which bodies display their form.
The forms of bodies could not be understood in detail but for
shadow.”