Date: 1751

"True philosophy was not known till that time; and it is but justice to say, that commencing from the last year of Cardinal Richelieu, and proceeding to those which immediately succeeded the death of Louis XIV. there came to pass in our arts, in our minds, in our manners, as well as in our govern...

— Arouet, François-Marie [known as Voltaire] (1694-1778)

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)

Date: 1751

"If any Man hath found out a Kind of Motive which doth not affect himself, he hath made a deeper Investigation into the 'Springs, Weights, and Balances' of the human Heart, than I can pretend to."

— Brown, John (1715-1766)

Date: 1751

"Thus a lively Imagination and unperceived Self-Love, fetter the Heart in certain ideal Bonds of their own creating: Till at length some turbulent and furious Passion arising in its Strength, breaks these fantastic Shackles which Fancy had imposed, and leaps to its Prey like a Tyger chained by Co...

— Brown, John (1715-1766)

Date: 1751

"If the brain, or some part of it, were not in a manner the fountain of sensation and motion, and more peculiarly the seat of the mind than the other bowels or members of the body; why should a slight inflammation of its membranes cause madness, or a small compression of it produce a palsy or apo...

— Whytt, Robert (1714-1766)

Date: 1751

"Nay, Epicurus himself, according to Lucretius, did not look upon these two as separate beings, but regarded the mind as a kind of mouvement produced by the anima or soul."

— Whytt, Robert (1714-1766)

Date: 1751

"The mind, therefore, in producing the vital and other involuntary motions, does not act as a rational, but as a sentient principle; which, without reasoning upon the matter, is as necessarily determined by an ungrateful sensation or stimulus affecting the organs, to exert its power, in bringing ...

— Whytt, Robert (1714-1766)