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Quotation from Elements of Chemistry by Antoine Lavoisier
“they act with regard to us as simple substances, and we ought never to suppose them compounded until experiment and observation has proved them to be so.”
Elements of Chemistry, Preface of the Author, trans. Robert Kerr
The close of Lavoisier's practical definition of elements as the last point analysis can reach.
Citation: "they act with regard to us as simple substances, and we ought never to suppose them compounded until experiment and observation has proved them to be so." — Antoine Lavoisier, Elements of Chemistry, Preface of the Author, trans. Robert Kerr. (id lavoisier-elements-of-chemistry-q4)
Portrait: David - Portrait of Monsieur Lavoisier (cropped), Jacques-Louis David, Public domain.
