Date: 1775

"I am rather inclined to think that, though the subject is beyond our comprehension at present, that man does not consist of two principles, so essentially different from one another as matter and spirit, which are always described as having not one common property, by means of which they can aff...

— Priestley, Joseph (1733-1804)

Date: 1775

"That vibrations corresponding to all the varieties of sensations and ideas that ever take place in any human, mind may take place in the same brain at the same time, can create no difficulty to any person who considers the capacity of the air itself to transmit different vibrations, witho...

— Priestley, Joseph (1733-1804)

Date: 1775

"That vibrations [in the air above London] which are nearly isochronous affect and modify one another, so as to become perfectly so, sufficiently corresponds to the phænomena of ideas, and therefore makes no objection to this doctrine."

— Priestley, Joseph (1733-1804)

Date: 1775

"For this reason a bow of any kind, that has been bent, does not restore itself to the same form that it had before, but leans a little to the other, in consequence of the spheres of attraction and repulsion belonging to the several particles having been altered by the change of their situation. ...

— Priestley, Joseph (1733-1804)

Date: 1775

"Also those phenomena in nature which depend upon gravity, electricity, &c. are no less various and complex; and the more we know of nature, the more particular facts, and particular laws, we are able to reduce to simple and general laws: insomuch that now it does not appear impossible, but that,...

— Priestley, Joseph (1733-1804)

Date: 1775

"To account for the idea of time, it appears to me to be sufficient to attend to a few well known facts, viz. that impressions made by external objects remain a certain space of time in the mind, that this time is different according to the strength, and other circumstances of the impression, and...

— Priestley, Joseph (1733-1804)