There is no certainty in sciences where one of the mathematical sciences cannot be applied, or which are not in relation with these mathematics. - Leonardo da Vinci

3 miglia più in là si trova li edifici della vena del rame e dello argento, presso una terra detta Pra Santo Petro e vene di ferro e cose fantastiche. (Ancient Italian)

Many have made a trade of delusions and false miracles, deceiving the stupid multitude.”

“Blinding ignorance does mislead us. O! Wretched mortals, open your eyes!

I find that any luminous body when seen through a dense and thick mist diminishes in proportion to its distance from the eye. Thus it is with the sun by day, as well as the moon and the other eternal lights by night. And when the air is clear, these luminaries appear larger in proportion as they are farther from the eye.