“We, on the other hand, must take for granted that the things that exist by nature are, either all or some of them, in motion.”

“Definition of tragedy: A hero destroyed by the excess of his virtues”

“A body in motion can maintain this motion only if it remains in contact with a mover.”

“For any two portions of fire, small or great, will exhibit the same ratio of solid to void; but the upward movement of the greater is quicker than that of the less, just as the downward movement of a mass of gold or lead, or of any other body endowed with weight, is quicker in proportion to its size.”

“Something is infinite if, taking it quantity by quantity, we can always take something outside.”

“By medicine life may be prolonged, yet death will seize the doctor too.”

“The patient, treated on the fashionable theory, sometimes gets well in spite of the medicine.”

“The physician is happy in the attachment of the families in which he practices. All think he has saved one of them, and he finds himself everywhere a welcome guest, a home in every house.”