Click on the phrases to see them in context. The original texts by Immanuel Kant and David Hume are available from the Gutenberg Projet.

Here I shall add that the conception of change, and with it the conception of motion, as change of place, is possible only through and in the representation of time; that if this representation were not an intuition (internal) a priori, no conception, of whatever kind, could render comprehensible the possibility of change, in other words, of a conjunction of contradictorily opposed predicates in one and the same object, for example, the presence of a thing in a place and the non-presence of the same thing in the same place.

Accordingly we may observe, that an excessive courage and magnanimity, especially when it displays itself under the frowns of fortune, contributes in a great measure, to the character of a hero, and will render a person the admiration of posterity; at the same time, that it ruins his affairs, and leads him into dangers and difficulties, with which otherwise he would never have been acquainted. Why distance weakens the conception and passion: Why distance in time has a greater effect than that in space: And why distance in past time has still a greater effect than that in future. Any artifice of politicians may assist nature in the producing of those sentiments, which she suggests to us, and may even on some occasions, produce alone an approbation or esteem for any particular action; but it is impossible it should be the sole cause of the distinction we make betwixt vice and virtue. I find, however, in the writings of modern authors, an entirely different use of the expressions, mundus sensibilis and intelligibilis, which quite departs from the meaning of the ancients--an acceptation in which, indeed, there is to be found no difficulty, but which at the same time depends on mere verbal quibbling. It is clear that objective significancy cannot consist in a relation to another representation (of that which we desire to term object), for in that case the question again arises; "How does this other representation go out of itself, and obtain objective significancy over and above the subjective, which is proper to it, as a determination of a state of mind?" If we try to discover what sort of new property the relation to an object gives to our subjective representations, and what new importance they thereby receive, we shall find that this relation has no other effect than that of rendering necessary the connection of our representations in a certain manner, and of subjecting them to a rule; and that conversely, it is only because a certain order is necessary in the relations of time of our representations, that objective significancy is ascribed to them.

That space and time are only forms of sensible intuition, and hence are only conditions of the existence of things as phenomena; that, moreover, we have no conceptions of the understanding, and, consequently, no elements for the cognition of things, except in so far as a corresponding intuition can be given to these conceptions; that, accordingly, we can have no cognition of an object, as a thing in itself, but only as an object of sensible intuition, that is, as phenomenon--all this is proved in the analytical part of the Critique; and from this the limitation of all possible speculative cognition to the mere objects of experience, follows as a necessary result.

Sometimes scurrility is less displeasing than delicate satire, because it revenges us in a manner for the injury at the very time it is committed, by affording us a just reason to blame and contemn the person, who injures us. It follows that an infinite given quantity, consequently an infinite world (both as regards time and extension) is impossible.