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)

Date: 1748, 1777

"And while the body is confined to one planet, along which it creeps with pain and difficulty; the thought can in an instant transport us into the most distant regions of the universe; or even beyond the universe, into the unbounded chaos, where nature is supposed to lie in total confusion."

— Hume, David (1711-1776)

Date: 1751, 1777

"We may as well imagine, that minute wheels and springs, like those of a watch, give motion to a loaded wagon, as account for the origin of passion from such abstruse reflections."

— Hume, David (1711-1776)