Quote by Friedrich Wöhler
"The great principle of chemistry is that the whole is equal to the sum of its parts."
"The great principle of chemistry is that the whole is equal to the sum of its parts."
"Organic chemistry just now is enough to drive one mad. It gives me the impression of a dark labyrinth into which one fears to enter without Ariadne's thread."
"I have made a great discovery. I have synthesized urea without needing a kidney or an animal in any way."
"The synthesis of urea proves that we can prepare an organic substance from inorganic materials."
"Nature is the best teacher; one must watch it carefully."