"By analogy: suppose you want to know more about butterflies. Certainly catching them and pinning them to a spreading board is one way to study them: you can me

"By analogy: suppose you want to know more about butterflies. Certainly catching them and pinning them to a spreading board is one way to study them: you can measure them exactly, you can count their spots and identify their coloration precisely. But you don't capture all that it is to observe a butterfly that way--you don't comprehend its flight, its movement, its way of being in motion." Nicely said.