Date: January 1739

"As nature has given to the body certain appetites and inclinations, which she encreases, diminishes, or changes according to the situation of the fluids or solids, she has proceeded in the same manner with the mind."

— Hume, David (1711-1776)

Date: January 1739

"Are the changes of our body from infancy to old age more regular and certain than those of our mind and conduct."

— Hume, David (1711-1776)

Date: January 1739

"Here is a connected chain of natural causes and voluntary actions; but the mind feels no difference betwixt them in passing from one link to another."

— Hume, David (1711-1776)

Date: January 1739

"[I]t follows that every thing which invigorates and enlivens the soul, whether by touching the passions or imagination, naturally conveys to the fancy this inclination for ascent, and determines it to run against the natural stream of its thoughts and conceptions"

— Hume, David (1711-1776)

Date: January 1739

"Are not these as plain proofs, that the passions of fear and hope are mixtures of grief and joy, as in optics it is a proof, that a coloured ray of the sun passing through a prism, is a composition of two others, when, as you diminish or encrease the quantity of either, you find it prevail propo...

— Hume, David (1711-1776)

Date: January 1739

"I shall observe that there cannot be two passions more nearly resembling each other than those of hunting and philosophy, whatever disproportion may at first sight appear betwixt them"

— 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

Personal identity may be like a church, "which was formerly of brick, fell to ruin, and that the parish rebuilt the same church of free-stone, and according to modern architecture."

— Hume, David (1711-1776)

Date: January 1739

Personal identity may be like a river which is totally alter'd "in less than four and twenty hours."

— Hume, David (1711-1776)

Date: January 1739

"The identity, which we ascribe to the mind of man, is only a fictitious one, and of a like kind with that which we ascribe to vegetables and animal bodies."

— Hume, David (1711-1776)