It cannot be that axioms established by argumentation should avail for the discovery of new works, since the subtlety of nature is greater many times over than the subtlety of argument. But axioms duly and orderly formed from particulars easily discover the way to new particulars, and thus render sciences active.
In its wider acceptation, understanding is the entire power of perceiving and conceiving, exclusive of the sensibility; the power of dealing with the impressions of sense, and composing them into wholes, according to a law of unity; and in its most comprehensive meaning it includes even simple apprehension.
The human understanding is unquiet; it cannot stop or rest, and still presses onward, but in vain. Therefore it is that we cannot conceive of any end or limit to the world, but always as of necessity it occurs to us that there is something beyond... But he is no less an unskilled and shallow philosopher who seeks causes of that which is most general, than he who in things subordinate and subaltern omits to do so.
Man is a synthesis of psyche and body, but he is also a synthesis of the temporal and the eternal. In the former, the two factors are psyche and body, and spirit is the third, yet in such a way that one can speak of a synthesis only when the spirit is posited. The latter synthesis has only two factors, the temporal and the eternal. Where is the third factor? And if there is no third factor, there really is no synthesis, for a synthesis that is a contradiction cannot be completed as a synthesis without a third factor, because the fact that the synthesis is a contradiction asserts that it is not. What, then, is the temporal?
These philosophers of the world place contrarieties in the same subject; for the one attributed greatness to nature and the other weakness to this same nature, which could not subsist; whilst faith teaches us to place them in different subjects: all that is infirm belonging to nature, all that is powerful belonging to grace. Such is the marvelous and novel union which God alone could teach, and which he alone could make, and which is only a type and an effect of the ineffable union of two natures in the single person of a Man-God.
The Idols of Tribe have their foundation in human nature itself, and in the tribe or race of men. For it is a false assertion that the sense of man is the measure of things. On the contrary, all perceptions as well of the sense as of the mind are according to the measure of the individual and not according to the measure of the universe. And the human understanding is like a false mirror, which, receiving rays irregularly, distorts and discolors the nature of things by mingling its own nature with it.
It cannot but be injurious to the human mind never to be called into effort. The habit of receiving pleasure without any exertion of thought, by the mere excitement of curiosity and sensibility, may be justly ranked among the worst effects of habitual novel-reading. Like idle morning visitors, the brisk and breathless periods hurry in and hurry off in quick and profitless succession; each, indeed, for the moment of its stay, prevents the pain of vacancy, while it indulges the love of sloth; but altogether they leave the mistress of the house—the soul, I mean—flat and exhausted, incapable of attending to her own concerns, and unfitted for the conversation of more rational guests.
What expressions we used – in part taken over and in part newly invented! — above all, the famous 'wholly other'breaking in upon us'perpendicularly from above, ' the not less famous 'infinite qualitative distinction'between God and man, the vacuum, the mathematical point, and the tangent in which alone they must meet.
On the one hand the standard of right and wrong, on the other the chain of causes and effects, are fastened to their throne. They govern us in all we do, in all we say, in all we think: every effort we can make to throw off our subjection, will serve but to demonstrate and confirm it. In words a man may pretend to abjure their empire: but in reality he will remain subject to it all the while. The principle of utility recognizes this subjection, and assumes it for the foundation of that system, the object of which is to rear the fabric of felicity by the hands of reason and of law. Systems which attempt to question it, deal in sounds instead of sense, in caprice instead of reason, in darkness instead of light.
Do not close the circle. Leave it open. Descartes closes the circle. Pascal leaves it open. Rousseau's triumph over the encyclopedists is to have left his circle open when they closed theirs.