Oyonale - Créations 3D et expériences graphiques
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Cliquer sur les phrases pour les voir dans leur contexte. Les textes de Immanuel Kant et David Hume sont disponibles auprès du Projet Gutenberg.
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Reason must approach nature with the view, indeed, of receiving information from it, not, however, in the character of a pupil, who listens to all that his master chooses to tell him, but in that of a judge, who compels the witnesses to reply to those questions which he himself thinks fit to propose. And this is the nature and use of geometry, to run us up to such appearances, as, by reason of their simplicity, cannot lead us into any considerable error. Understanding knows nothing in nature but that which is, or has been, or will be. In this particular, the study of history confirms the reasonings of true philosophy; which, shewing us the original qualities of human nature, teaches us to regard the controversies in politics as incapable of any decision in most cases, and as entirely subordinate to the interests of peace and liberty. For to instance only in the cases of extension and number; it is evident, that any very bulky object, such as the ocean, an extended plain, a vast chain of mountains, a wide forest: or any very numerous collection of objects, such as an army, a fleet, a crowd, excite in the mind a sensible emotion; and that the admiration, which arises on the appearance of such objects, is one of the most lively pleasures, which human nature is capable of enjoying. I cannot forbear having a curiosity to be acquainted with the principles of moral good and evil, the nature and foundation of government, and the cause of those several passions and inclinations, which actuate and govern me. Nay, it may even be said that the true value of mathematics- that pride of human reason--consists in this; that she guides reason to the knowledge of nature--in her greater as well as in her less manifestations--in her beautiful order and regularity--guides her, moreover, to an insight into the wonderful unity of the moving forces in the operations of nature, far beyond the expectations of a philosophy building only on experience; and that she thus encourages philosophy to extend the province of reason beyond all experience, and at the same time provides it with the most excellent materials for supporting its investigations, in so far as their nature admits, by adequate and accordant intuitions. That cause, which excites the passion, is related to the object, which nature has attributed to the passion; the sensation, which the cause separately produces, is related to the sensation of the passion: From this double relation of ideas and impressions, the passion is derived.