Date: 1748, 1749

"Thus it is only a posteriori, or as it were by disentangling the soul from the organs of the body, that we can, I do not say, discover with evidence the nature of man, but obtain the greatest degree of probability the subject will admit of."

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"In proportion as the motion of the blood grows calm, a soft soothing sense of peace and tranquility spreads itself over the whole machine; the soul finds itself sweetly weighed down with slumber, and sinks with the fibres of the brain: it becomes thus paralytic as it were, by degrees, together w...

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"'Tis thus the brain, that matrix, if I may use the expression, of the soul, is perverted after its manner, together with that of the body."

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"The mind has, as well as the body, its epidemical and scorbutic disorders."

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"By its flattering pencil the cold skeleton of abstract reason assumes living and vermillion flesh; but it the sciences flourish, arts are embellished, woods speak, echoes sigh, rocks weep, marble breathes, and all the inanimate bodies are suddenly inspired with life."

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"Besides what would the very best school avail without a matrix perfectly open for the entrance, or conception of ideas? It is as impossible to give a single idea or notion to a man, deprived of his senses, as it is to get a woman with child, to whom nature in a hurry has denied a womb; as I once...

— 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

"'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)

Date: 1759

The mind sees the truth as the eye sees light

— Alembert, Jean le Rond d' (1717-1783)

Date: 1762

"The legislative power is the heart of the State; the executive power is its brain, which causes the movement of all the parts."

— Rousseau, Jean-Jacques (1712-1778)