Date: 1748, 1749

"Is there any further occasion, to prove that man is but an animal, made up of a number of springs, which are all put in motion by each other; and yet we cannot tell to which part of the human structure first set her hand. If these springs differ amongst themselves, this arises from their particu...

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"The body may be consider'd as a clock, and the fresh chyle we may look upon as the former of that clock."

— 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: 1751

"True philosophy was not known till that time; and it is but justice to say, that commencing from the last year of Cardinal Richelieu, and proceeding to those which immediately succeeded the death of Louis XIV. there came to pass in our arts, in our minds, in our manners, as well as in our govern...

— Arouet, François-Marie [known as Voltaire] (1694-1778)

Date: 1755

"The sovereign power represents the head; the laws and customs are the brain, the source of the nerves and seat of the understanding, will and senses, of which the Judges and Magistrates are the organs: commerce, industry, and agriculture are the mouth and stomach which prepare the common subsist...

— Rousseau, Jean-Jacques (1712-1778)

Date: w. 1753-1758

"Si la loi naturelle n'était écrite que dans la raison humaine, elle serait peu capable de diriger la plupart de nos actions. Mais elles est encore gravée dans le coeur de l'homme en caractères ineffaçables; et c'est là qu'elle lui parle plus fortement que tous les préceptes des philosophes; c'es...

— Rousseau, Jean-Jacques (1712-1778)

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)

Date: 1762

"Along with these three kinds of law goes a fourth, most important of all, which is not graven on tablets of marble or brass, but on the hearts of the citizens."

— Rousseau, Jean-Jacques (1712-1778)

Date: 1762

"The public force therefore needs an agent of its own to bind it together and set it to work under the direction of the general will, to serve as a means of communication between the State and the Sovereign, and to do for the collective person more or less what the union of soul and body does for...

— Rousseau, Jean-Jacques (1712-1778)