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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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This question we cannot be long in deciding, For besides all the other arguments, with which this subject abounds, it must evidently appear, that the relation of ideas, which experience shews to be so requisite a circumstance to the production of the passion, would be entirely superfluous, were it not to second a relation of affections, and facilitate the transition from one impression to another.

 None of them can go beyond experience, or establish any principles which are not founded on that authority. And for this purpose, mere analysis is of course useless, because it only shows what is contained in these conceptions, but not how we arrive, a priori, at them; and this it is her duty to show, in order to be able afterwards to determine their valid use in regard to all objects of experience, to all knowledge in general. For as all our reasonings concerning existence are derived from causation, and as all our reasonings concerning causation are derived from the experienced conjunction of objects, not from any reasoning or reflection, the same experience must give us a notion of these objects, and must remove all mystery from our conclusions. For example, the proposition, "Every change has a cause," is a proposition a priori, but impure, because change is a conception which can only be derived from experience. For I can say only of a thing in itself that it exists without relation to the senses and experience. What we have found once to follow from any object, we conclude will for ever follow from it; and if this maxim be not always built upon as certain, it is not for want of a sufficient number of experiments, but because we frequently meet with instances to the contrary; which leads us to the second species of probability, where there is a contrariety in our experience and observation. It is difficult for us to withhold our assent from what is painted out to us in all the colours of eloquence; and the vivacity produced by the fancy is in many cases greater than that which arises from custom and experience. A transcendental proposition is, therefore, a synthetical cognition of reason by means of pure conceptions and the discursive method, and it renders possible all synthetical unity in empirical cognition, though it cannot present us with any intuition a priorI. [*Footnote; In the case of the conception of cause, I do really go beyond the empirical conception of an event--but not to the intuition which presents this conception in concreto, but only to the time-conditions, which may be found in experience to correspond to the conception.