"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 …"

"It is almost possible to predict one or two days in advance, within a rather broad range of probability, what the weather is going to be; it is even thought that it will not be impossible to publish d…"

"The more we know, the more we admire."

"The imagination is a dangerous guide in science, but it can be a useful servant."

"The art of drawing conclusions from experiments and observations consists in evaluating probabilities and in judging if they are great enough to constitute proofs."