Date: 1697

"What Cause can you assign able to produce the first Thought at the end of this Sleep and Silence, in a total Ecclipse and intermission of Thinking?"

— Burnet, Thomas (c.1635-1715)

Date: 1777

"My father did not then perceive this; it was not till he waited on Montauban, that the force of it struck his mind."

— Mackenzie, Henry (1745-1831)

Date: 1777

"If they say, that affection is a mere involuntary impulse, neither waiting the decisions of reason, or the dissuasive of prudence, do they not in reality degrade us to machines, which are blindly actuated by some uncontrollable power?"

— Mackenzie, Henry (1745-1831)

Date: 1782

"I wonder what companions she has met with--there is a magnetism in good-nature which will ever attract its like--so if she meets with beings the least social--but that's as chance wills!"

— Sancho, Charles Ignatius (1729-1780)

Date: 1820

"And they [Stewart, Tracy, Cabanis] ask why may not the mode of action called thought, have been given to a material organ of peculiar structure, as that of magnetism is to the needle, or of elasticity to the spring by a particular manipulation of the steel."

— Jefferson, Thomas (1743-1826)

Date: December 27, 1823

"Now in filling my mind with them [ideas and facts], and in warming and animating me, you would, I doubt not, do me great good. And I am one of those substances, like sealing wax and other electric bodies, which require to be warmed in order to possess the faculty of attracting objects, of coveri...

— Wilberforce, William (1759-1833)