Perspective is the rein and rudder of painting.
Art is never finished, only abandoned.
You should prefer a good scientist without literary abilities than a literate one without scientific skills
Savage is he who saves himself.
Water is the driving force of all nature.
Truth at last cannot be hidden. Dissimulation is of no avail. Dissimulation is to no purpose before so great a judge. Falsehood puts on a mask. Nothing is hidden under the sun.