Antoine Lavoisier — "I have never been able to believe in anything that I could not demonstrate by ex…"

"The success of charlatans, sorcerors, and alchemists—and all those who abuse public credulity—is founded on errors in this type of calculation."

"It is not by chance that I have succeeded, but by hard work and perseverance."

"The true philosopher is he who knows how to doubt."

"The most important thing for a man of science is to have a clear head and a good heart."

"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…"