Evangelista Torricelli

“We live submerged at the bottom of an ocean of the element of air.”

“Noi viviamo sommersi nel fondo d'un pelago d'aria.”

“I claim that the force which holds the mercury up is external and that the force comes from outside.”

“Many have argued that a vacuum does not exist, others that it exists only with difficulty and against the inclination of Nature; I know of no one who has argued that it exists without difficulty and without resistance from Nature.”