“The first object of the painter is to make a flat plane appear as a body in relief and projecting from that plane”

“Poor is the man who desires a lot”

“Things severed shall be united and shall acquire of themselves such virtue that they shall restore to men their lost memory: - That is the papyrus sheets, which are formed out of several strips and preserve the memory of the thoughts and deeds of men.”

“The wisest and noblest teacher is nature itself.”

“Oh! Speculators on things, boast not of knowing the things that nature ordinarily brings about; but rejoice if you know the end of those things which you yourself device.”

“Even the most eminent persons are subject to the laws of gravity.”

“If your car could travel at the speed of light, would your headlights work?”

“The atom cannot disobey the law. Whether it is the mental or the physical atom, it must obey the law. "What is the use of [external restraint]?"”

“And the more pity that great folk should have count'nance in this world to drown or hang themselves more than their even-Christen.”

“Some will always be above others. Destroy the inequality today, and it will appear again tomorrow.”

“In the Fiji islands, it appears, cannibalism is now familiar. They eat thier own wives and children. We only devour widows' houses, and great merchants outwit and absorb the substance of small ones, and every man feeds on his neighbor's labor if he can. It is a milder form of cannibalism.”

“The walking of Man is falling forwards.”

“Taste your legs, sire: put them into motion.”

“Things in motion sooner catch the eye than what not stirs.”

“Whenever a true theory appears, it will be its own evidence. Its test is, that it will explain all phenomena.”

“The Good Spirit never cared for the colleges, and though all men and boys were now drilled in Greek, Latin, and Mathematics, it had quite left these shells high on the beach, and was creating and feeding other matters [science] at other ends of the world.”

“Every known fact in natural science was divined by the presentiment of somebody, before it was actually verified.”