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

"Hurried with incessant rapidity by the vortex of blood and animal spirits, one undulation makes an impression, which is immediately effaced by another; the soul pursues it, but often in vain: she must wait to bewail the loss of what she did not quickly lay hold of; and thus it is that the imagin...

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"Such is the chaos, such the rapid and continual succession of our ideas; they drive one another successively, as one wave impels another; so that it the imagination does not employ a part of its muscles, poised as it were in an equilibrium upon the strings of the brain, so as to sustain itself s...

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"There is, say they, a law of nature, a knowledge of right and wrong deeply imprinted on the mind of man, which, in other animals, is not perceived."

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"Have we one argument of this sort to convince us that man alone is enlighten'd with the rays of reason, from which all other creatures are excluded?"

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"Man is fram'd of materials, not exceeding in value those of other animals; nature has made use of one and the same paste, she has only diversify'd the ferment in working it up."

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"If reason is the slave of depraved, or distracted sense, how then can it be expected, that at that time it should be governor?"

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"The sun, the air, the water, the organization and form of bodies, are all rang'd in order in the eye, as in a looking-glass, which represents to the imagination the pictures of all the objects painted there, according to the laws of vision, which prevail amongst that numberless variety of partic...

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"The eye is, in reality, a sort of peep-hole, thro' which the soul can view the images of objects, according as they are represented from different bodies."

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"'Tis this which is the source of all our sentiments, of all our pleasures, passions, and thoughts; for the brain has its proper muscles for thinking, as well as the legs have theirs for walking."

— Julien Offray de La Mettrie (1709-1751)