Date: 1748, 1749

"The human body is a machine that winds up its own springs: it is a living image of the perpetual motion."

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"Like that bird on yonder spray, the imagination seems to be perpetually ready to take wing."

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"As the string of a violin or harpsichord trembles and vibrates, so the fibres or strings of the brain struck by the undulating rays of sound, are excited to return or repeat the words that touched them."

— Julien Offray de La Mettrie (1709-1751)

Date: Saturday March 24, 1750

"The natural flights of the human mind are not from pleasure to pleasure, but from hope to hope."

— Johnson, Samuel (1709-1784)

Date: 1751

"Mankind would be in a perpetual reverie; ideas would be constantly floating in the mind; and no man be able to connect his ideas with himself."

— Home, Henry, Lord Kames (1696-1782)

Date: 1751

"A reverie is nothing else, but a wandering of the mind through its ideas, without carrying along the perception of self."

— Home, Henry, Lord Kames (1696-1782)

Date: 1751

"Frightful ideas croud into the mind, and augment the fear, which is occasioned by darkness."

— Home, Henry, Lord Kames (1696-1782)

Date: August 27, 1751

"She applies by turns to every object, enjoys it for a short time, and flies with equal ardour to another. She delights to catch up loose and unconnected ideas, but starts away from systems and complications which would obstruct the rapidity of her transitions, and detain her long in the same pur...

— Johnson, Samuel (1709-1784)

Date: August 27, 1751

"The painted vales of imagination are deserted, and our intellectual activity is exercised in winding through the labyrinths of fallacy, and toiling with firm and cautious steps up the narrow tracks of demonstration."

— Johnson, Samuel (1709-1784)

Date: August 27, 1751

"At length weariness succeeds to labour, and the mind lies at ease in the contemplation of her own attainments, without any desire of new conquests or excursions."

— Johnson, Samuel (1709-1784)