“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.”

“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.”

“My grief lies onward, and my joy behind.”

“O! that a man might know The end of this day's business, ere it come; But it sufficeth that the day will end, And then the end is known.”

“The bitter past, more welcome is the sweet.”

“Knowing I lov'd my books, he furnish'd me From mine own library with volumes that I prize above my dukedom.”

“I'll teach you differences.”

“Plutus himself,That knows the tinct and multiplying med'cine,Hath not in nature's mystery more scienceThan I have in this ring.”