Simplicity. (2023, October 18). Wikiquote. Retrieved October 30, 2023 from https://en.wikiquote.org/w/index.php?title=Simplicity&oldid=3382466.
And, because the blood which thus enters into the heart passes through these two pouches called auricles, it thence happens that their motion is the contrary of that of the heart, and that when it expands they contract.