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Critique of Pure Reason Quotes
I had to deny knowledge in order to make room for faith.
— Immanuel Kant, Critique of Pure Reason
…Reason should take on anew the most difficult of all its tasks, namely, that of self-knowledge, and to institute a court of justice, by which reason may secure its rightful claims while dismissing all its groundless pretensions, and this not by mere decrees but according to its own eternal and unchangeable laws; and this court is none other than the critique of pure reason itself.
— Immanuel Kant, Critique of Pure Reason
Enlightenment is man’s emergence from his self-imposed immaturity. Nothing is required for this enlightenment except freedom; and the freedom in question is the least harmful of all, namely, the freedom to use with and publicly in all matters.
— Immanuel Kant, Critique of Pure Reason
(On the seeming futility of metaphysics) Why then has nature afflicted our reason with the restless striving for such a path, as if it were one of reason’s most important occupations? Still more, how little cause have we to place trust in our reason if in one of the most important parts of our desire for knowledge it does not merely forsake us but even entices us with delusions and in the end betrays us! Or if the path has merely eluded us so far, what indications may we use that might lead us to hope that in renewed attempts we will be luckier than those who have gone before us?
— Immanuel Kant, Critique of Pure Reason
To know what questions may reasonably be asked is already a great and necessary proof of sagacity and insight. For if a question is absurd in itself and calls for unnecessary answers, it not only brings disgrace to the person raising it, but may prompt an incautious listener to give absurd answers, thus presenting, as the ancients said, the laughable spectacle of one person milking a he-goat, and another holding the sieve underneath.
— Immanuel Kant, Critique of Pure Reason
Metaphysics… is nothing but the inventory of all we possess through pure reason, ordered systematically. Nothing here can escape us, because what reason brings forth entirely out of itself cannot be hidden, but is brought to light by reason itself as soon as reason’s common principle has been discovered. The perfect unity of this kind of cognition, and the fact that it arises solely out of pure concepts without any influence that would extend or increase it from experience or even particular intuition, which would lead to a determinate experience, make this unconditioned completeness not only feasible but also necessary. Tecum habita, et noris quam sit tibi curta supellex. Dwell in your own house, and you will know how simple your possessions are. – Persius
— Immanuel Kant, Critique of Pure Reason
Skepticism is thus a resting-place for human reason, where it can reflect upon its dogmatic wanderings and make survey of the region in which it finds itself, so that for the future it may be able to choose its path with more certainty. But it is no dwelling-place for permanent settlement. Such can be obtained only through perfect certainty in our knowledge, alike of the objects themselves and of the limits within which all our knowledge of objects is enclosed.
— Immanuel Kant, Critique of Pure Reason
Thoughts without content are empty, intuitions without concepts are blind.
— Immanuel Kant, Critique of Pure Reason
All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.
— Immanuel Kant, Critique of Pure Reason
Whereas the beautiful is limited, the sublime is limitless, so that the mind in the presence of the sublime, attempting to imagine what it cannot, has pain in the failure but pleasure in contemplating the immensity of the attempt
— Immanuel Kant, Critique of Pure Reason
Philosophical knowledge is knowledge which reason gains from concepts mathematical knowledge is knowledge which reason gains from the construction of concepts.
— Immanuel Kant, Critique of Pure Reason
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