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)

Date: 1751

"The bodies of brute animals are actuated by a principle of a like kind with what is placed in man, but greatly inferior with regard to the degrees of reason and intelligence which it possesses: in the more perfect brutes, this principle is plainly intelligent as well as sentient; and their actio...

— Whytt, Robert (1714-1766)

Date: 1751

"In walking the streets, how many persons of one's acquaintance are every minute presented to the mind, as their pictures are painted on the retina; yet if we be alone, having our thoughts strongly turned upon a particular subject, or else be deeply engaged in conversation with a friend, we are o...

— Whytt, Robert (1714-1766)

Date: 1751

"In this particular case, we must either suppose, that the impressions, made by the stars on the retina, are suffocated and lost in those stronger ones made by the illuminated atmosphere, so as never to reach the sensorium in order to excite any idea in the mind, or that if they do reach the sens...

— Whytt, Robert (1714-1766)

Date: 1751

"But this discovery is by no means confined to colours as they exist out of the mind, either in the rays of light, or surfaces of bodies; but is equally true of the ideas of colours in the mind itself: for it appears, by experiments, that the idea of red and the idea of yellow, confounded in the ...

— Whytt, Robert (1714-1766)

Date: 1751

"It remains, therefore, that the motions performed by us, in consequence of an irritation, are owing to the original constitution of our frame, and law of union established by the all-wise Creator between the soul and body, whereby the former, immediately and without any exercise of reason, endea...

— Whytt, Robert (1714-1766)

Date: 1751

"[I]f otherwise, we endeavour in vain to correct his wrong judgment by reason or argument, since the disordered state of the brain makes a stronger impression upon the mind, than any arguments or external considerations whatever."

— Whytt, Robert (1714-1766)

Date: 1751

"Nay, while, in man, the brain is the principal seat of the soul, where it most eminently displays its powers; it seems to exist so equally through the whole bodies of insects, as that its power or influence scarce appears more remarkable in one part than another: and hence it is, that, in such c...

— Whytt, Robert (1714-1766)