Mathematics and physics are the two theoretical sciences of reason, which have to determine their objects a priori.


In: Great Books of the Western World (Volume 42), Critique of Pure Reason, Preface to the Second Edition (p. 5)


Mathematics and physics are the two theoretical sciences of reason, which have to determine their objects a priori.

Mathematics and physics are the two theoretical sciences of reason, which have to determine their objects a priori.

Mathematics and physics are the two theoretical sciences of reason, which have to determine their objects a priori.

Mathematics and physics are the two theoretical sciences of reason, which have to determine their objects a priori.