"The center of gravity of any triangle is the point of intersection of its medians."

"It is easier to make a thousand discoveries than to invent a single new method."

"Every solid body immersed in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the body."

"The cone is one third of the cylinder on the same base and of the same height."

"Give me the place to stand, and I shall move the earth."