Date: 1615

"Go too then, is not he said to know himself, who can tell how to temper and order the state and condition of his mind, how to appease those civil tumults within himself, by the storms and waves whereof he is pitifully tossed, and how to suppress and appease those varieties of passions wherewith ...

— Crooke, Helkiah (1576-1648)

Date: 1722

"[O]r that hence, as swiftly those imperceptible Messengers called animal Spirits, should, at the Nutus Animae, rush through their Meandrous Paths like Lightning, and having dispatched the Mandates of the Will, as speedily bring back their Errand to the common Sensory."

— Turner, Daniel (1667-1741)

Date: 1748, 1749

"And where is the wonder that the body when in health should be subservient, for how can it resist that torrent of blood, and all those spirits which are ready to force obedience, the will having for its ministers an invisible army of fluids, always ready to receive its orders, and as quick as li...

— Julien Offray de La Mettrie (1709-1751)

Date: January 11, 2014

"It's [concerning sleep loss] like the difference between a snowstorm's disrupting a single day of trash pickup and a prolonged strike. No longer quite as easy to fix, and even when the strike is over, there's likely to be some stray debris floating around for quite some time yet."

— Konnikova, Maria (b. 1984)