"Deus creavit, Linnaeus disposuit. (God created, Linnaeus arranged.)"

"I saw a monster today: a two-headed calf. It lived for only an hour, but I dissected it to see if God had given it two souls."

"Human beings, having, above all creatures, received the power of reason... need to be aware where nature is unaware. Nature reaches its culmination in humans, but human consciousness has not its essen…"

"Without names, knowledge is lost."

"A professor can never better distinguish himself in his work than by encouraging a clever pupil, for the true discoverers are among them, as comets amongst the stars."