Charles Darwin Quotes about Feelings
Philip Parker King, Sir Francis Darwin, Robert Fitzroy, Charles Darwin (1839). “Narrative of the Surveying Voyages of His Majesty's Ships Adventure and Beagle: Between the Years 1826 and 1836 ...”, p.29
Delight itself, however, is a weak term to express the feelings of a naturalist.
Charles Darwin (2016). “A Naturalist's Voyage Round the World: the Evolution”, p.9, VM eBooks