Date: January 1739

"I have already observed, in examining the foundation of mathematics, that the imagination, when set into any train of thinking, is apt to continue even when its object fails it, and, like a galley put in motion by the oars, carries on its course without any new impulse."

— Hume, David (1711-1776)

Date: 1741

"Two men travelling on the highway, the one east, the other west, can easily pass each other, if the way be broad enough: But two men, reasoning upon opposite principles of religion, cannot so easily pass, without shocking; though one should think, that the way were also, in that case, sufficient...

— Hume, David (1711-1776)

Date: 1742

"The mind naturally continues with the same impetus or force, which it has acquired by its motion; as a vessel, once impelled by the oars, carries on its course for some time, when the original impulse is suspended."

— Hume, David (1711-1776)