Nothing is created, either in the operations of art, or in those of nature; and it may be considered as a general principle that in every operation there exists an equal quantity of matter before and after the operation.
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"The human mind is capable of understanding all the secrets of nature."
"It is only by means of experiments that we can arrive at the truth."
"We must trust to nothing but facts, for we are to have no other guide."
"The human mind is always eager for novelty and impatient of repetition."
"I have always found that the more I learned, the more I realized how much I did not know."
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