Date: January 1739

"Ideas may be compared to the extension and solidity of matter and impressions, especially reflective ones, to colours, tastes, smells, and other sensible qualities."

— Hume, David (1711-1776)

Date: January 1739

Personal identity may be like a "a noise, that is frequently interrupted and renew'd ... tho' 'tis evident the sounds have only a specific identity or resemblance, and there is nothing numerically the same, but the cause which produc'd them."

— Hume, David (1711-1776)

Date: January 1739

"Let us chace our imagination to the heavens, or to the utmost limits of the universe; we never really advance a step beyond ourselves, nor can conceive any kind of existence, but those perceptions which have appeared in that narrow compass."

— Hume, David (1711-1776)

Date: September 17, 1739

"There are different ways of examining the Mind as well as the Body. One may consider it either as an Anatomist or as a Painter; either to discover its most secret Springs & Principles or to describe the Grace & Beauty of its Actions."

— Hume, David (1711-1776)

Date: January 1739

"This is the universe of the imagination, nor have we any idea but what is there produc’d."

— Hume, David (1711-1776)

Date: January 1739

"And as an image necessarily resembles its object, must not the frequent placing of these resembling perceptions in the chain of thought, convey the imagination more easily from one link to another, and make the whole seem like the continuance of one object?"

— Hume, David (1711-1776)

Date: January 1739

"Pity, then, is related to benevolence, and malice to anger; and as benevolence has been already found to be connected with love, by a natural and original quality, and anger with hatred, it is by this chain the passions of pity and malice are connected with love and hatred."

— Hume, David (1711-1776)

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)