Ah, he has too many ideas, that man da Vinci. His mind works faster than his hands.

The Last Supper is supposed to be thirteen men. Who is this woman?

"Everyone misses it, our preconceived notions of this scene are so powerful that our mind blocks out the incongruity and overrides our eyes.

...the most sublime of oddballs, Leonardo da Vinci

Coincidence was a concept he did not entirely trust. As someone who had spent his life exploring the hidden interconnectivity of disparate emblems and ideologies, Langdon viewed the world as a web of profoundly intertwined histories and events. The connections may be invisible, he often preached to his symbology classes at Harvard, but they are always there, buried just beneath the surface.

The painter has the Universe in his mind and hands.

When a question has no correct answer, there is only one honest response.
The gray area between yes and no.
Silence.