"There is no perfect knowledge which can be entitled ours, that is innate; none but what has been obtained from experience, or derived in some way from our senses."

"It is a thing worthy of observation how much more easily and quickly the mind is deceived than the eye."

"The blood in the arteries is of a more florid colour than that in the veins."

"The heart is like a king, sitting in the middle of his kingdom, sending out commands to the periphery."

"The more accurately we search into the wonderful works of God, the more a reason we shall find to admire them."