A23/B37 ;;Quote: time and space are a priori; both are necessary conditions for the possibility of appearances

A36/B53 ;;Quote: time is nothing but the form of our internal intuition; it has empirical reality but not absolute reality

A316/B372 ;;Quote: freedom is the foundation of a state and its laws; the greatest freedom that is consistent with the freedom of every other individual

A473/B501 ;;Quote: human reason regards all knowledge as parts of a possible system and hence resists contradiction; but there is no system

A473/B501+;;Quote: everything in existence is conditioned, and still not dependent on an unconditioned and primal existence

A489/B517 ;;Quote: possible experience can alone give reality to our concepts; without it a concept is merely an idea, without truth or relation to an object

A491/B519 ;;Quote: time, space, and appearances are not in themselves things; they are representations of the mind

A541/B569 ;;Quote: the natural law that everything has a cause and that all events are empirically determined lies at the foundation of a connected system of appearances; i.e., nature

A543/B571 ;;Quote: every cause of an event is itself an event or occurrence; thus an absolute beginning is impossible in the sensible world

A611/B639 ;;Quote: knowledge of the existence of the cause of all possible effects is both indispensable and unknowable

A611/B639+;;Quote: knowledge of an unconditioned necessity must itself be an unconditioned necessity and hence unknowable

A725/B753 ;;Quote: mathematical methods in philosophy can only build car-castles while philosophical methods in mathematics result in mere verbiage

A725/B753+;;Quote: a definition in philosophy describes a concept while a definition in mathematics constructs a concept

A795/B823 ;;Quote: human reason stands in need of discipline to expose the illusions which it originates; this discipline is exercised by reason alone

A795/B823+;;Quote: all philosophy of pure reason is purely negative; it guards against error but does not lead to the discovery of new truth

A796/B824 ;;Quote: any canon for employing the faculty of pure reason will relate to the practical use of reason and not to its speculative use

A796/B824 ;;Quote: the faculty of reason has a natural desire to build a self-subsistent systematic whole by ideas alone

A798/B826 ;;Quote: practical knowledge is what is possible through free will

A798/B826+;;Quote: moral laws alone belong to the sphere of the practical exercise of reason

A798/B826+;;Quote: moral laws admit of a canon of absolute imperatives derived through pure reason

A804/B832 ;;Quote: knowledge through pure reason about 'What can I know?' lies beyond our reach

A804/B832 ;;Quote: happiness is the goal of the practical, moral application of pure reason

A804/B832+;;Quote: a moral or ethical law has no other motive than the worthiness of being happy

A808/B836 ;;Quote: do that which will render thee worth of happiness

A831/B859 ;;Quote: architectonic is the art of constructing a system or a systematic unity to our knowledge

A831/B859+;;Quote: a system is the unity of various knowledge under one idea, i.e., an a priori form of the whole

A831/B859 ;;Quote: a system requires a schema, i.e., an a priori content and arrangement of parts; otherwise the unity is accidental

A833/B861 ;;Quote: the schema of a science must give a priori the plan of it; but the schema rarely corresponds with the originator's idea or description

A833/B861+;;Quote: we ought to explain and define a science according to ideas based in reason; as suggested by the natural unity of the parts of the science already accumulated