Date: 1755

"For if Irritability subsists in parts separate from the body, and not subject to the command of the soul, if it resides every where in the muscular fibres, and is independent of the nerves, which are the satellites of the soul, it is evident, that it has nothing in common with the soul,...

— Von Haller, Albrecht (1708-1777)

Date: 1773

"Whenever the operations of the soul are well performed, and the soul acts with entire liberty, the blood flows with moderate velocity; on the contrary, it circulates with great rapidity in frenzies, in strong agitations of the mind, and when the lamp of wisdom is extinct."

— Marat, Jean-Paul (1743-1793)

Date: 1773

"Thus likewise, when we form to ourselves a notion of the soul, we ever represent it as a thin shade, or subtil matter; in short, as a corporeal being, if we form any image of it at all."

— Marat, Jean-Paul (1743-1793)

Date: 1773

"Even immediately after profound meditation, the mind being fatigued, indulges itself in roving, although the will oppose; we indeed continue to think, but our thoughts are altogether irregular; we remain awake, but experience the effects of sleep; imagination traces the same airy semblances, the...

— Marat, Jean-Paul (1743-1793)

Date: 1773

"When the soul is engrossed by any violent passion, when the imagination forms a lively picture of the charms of a favourite object, represents it as the idol of the heart, adorns it with every attractive grace, and suffers it to make a deep impression on the mind; by degrees the charms, in which...

— Marat, Jean-Paul (1743-1793)

Date: 1773

"Nevertheless, if regular imagination requires the elasticity of our organs, it requires it in a less degree than reason; for its objects are neither necessarily dependant on each other, nor closely connected its productions are only detached parts, where the mind has nothing to do but to weave t...

— Marat, Jean-Paul (1743-1793)

Date: 1773

"It is therefore only by variously combining objects, by leaving (if I may be allowed the expression) the mind to rove at will, and by employing no more attention than is necessary to collect the result of its thoughts, and to select therefrom such as are for its purpose."

— Marat, Jean-Paul (1743-1793)

Date: 1774

"If by collecting into one point of view under your eyes the villainous measures planned by Princes to attain absolute empire, and the dismal scenes ever attendant on despotism, I could inspire you with horror against tyranny, and revive in your breasts the holy flame of liberty which burnt in th...

— Marat, Jean-Paul (1743-1793)

Date: 1774

"Will the holy flame of liberty which burnt in their breasts never burn in yours?"

— Marat, Jean-Paul (1743-1793)

Date: 1774

"Hence Princes generally neglect nothing which may bring luxury into esteem: they recommend it by their example; they display every where pageantry and magnificence, and are the first to sow in the minds of their subjects those seeds of corruption."

— Marat, Jean-Paul (1743-1793)