Date: January 1739

"The vividness of the first conception diffuses itself along the relations, and is convey'd, as by so many pipes or canals, to every idea that has any communication with the primary one."

— Hume, David (1711-1776)

Date: January 1739

"BUT tho' this be the only reasonable account we can give of necessity, the contrary notion is so riveted in the mind from the principles above-mention'd, that I doubt not but my sentiments will be treated by many as extravagant and ridiculous."

— Hume, David (1711-1776)

Date: January 1739

"The attention is on the stretch; the posture of the mind is uneasy; and the spirits being diverted from their natural course, are not governed in their movements by the same laws, at least not to the same degree, as when they flow in their usual channel."

— Hume, David (1711-1776)

Date: 1740

"But notwithstanding the empire of the imagination, there is a secret tie or union among particular ideas, which causes the mind to conjoin them more frequently together, and makes the one, upon its appearance, introduce the other."

— Hume, David (1711-1776)

Date: 1740

"Hence arises what we call the apropos of discourse: hence the connection of writing: and hence that thread, or chain of thought, which a man naturally supports even in the loosest reverie."

— Hume, David (1711-1776)

Date: 1740

"For as it is by means of thought only that any thing operates upon our passions, and as these are the only ties of our thoughts, they are really to us the cement of the universe, and all the operations of the mind must, in a great measure, depend on them."

— Hume, David (1711-1776)

Date: 1751

"If motives be of very different kinds, with regard to strength and influence, which we feel to be the case; it is involved in the very idea of the strongest motive, that it must have the strongest effect in determining the mind. This can no more be doubted of, than that, in a balance, the greate...

— Home, Henry, Lord Kames (1696-1782)

Date: 1751

"In other cases, where the field of choice is wider, and where opposite motives counterbalance and work against each other, the mind fluctuates for a while, and feels itself more loose: but, in the end, must as necessarily be determined to the side of the most powerful motive, as the balance, aft...

— Home, Henry, Lord Kames (1696-1782)

Date: 1751

"The laws of mind, and the laws of matter, are in this respect perfectly similar; tho', in making the comparison, we are apt to deceive ourselves."

— Home, Henry, Lord Kames (1696-1782)

Date: 1751

"A weak motive makes some impression: but, in opposition to one more powerful, it has no effect to determine the mind. In the precise same manner, a small force will not overcome a great resistance; nor the weight of an ounce in one scale, counter-balance a pound in the other."

— Home, Henry, Lord Kames (1696-1782)