by C. F. Pantin:

. . . if you are not careful you may start to imagine that you can explain the whole behavior of the sea anemone by very simple reflexes ‑- like the effect of a coin in a slot machine. But quite by accident, I discovered that apart from reflexes, there was a whole mass of purposive behavior connected with the spontaneous activity of the anemone about which we simply know nothing. (Actually, this behavior was too slow to be noticed; it was outside our sensory spectrum for the time being.