"As ideas are preserved and communicated by means of words, it necessarily follows that we cannot improve the language of any science, without at the same time improving the science itself; neither can…"

"The human mind, like the human body, requires nourishment."

"I have endeavored to make chemistry a science of reasoning, and not of memory."

"The value of a discovery consists not in its novelty, but in its truth."

"I have never been able to believe in anything that I could not demonstrate by experiment."