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THE KEY OF KNOWLEDGE.
only with the aid of the substance of Time as already shown.
This substance of Time is called the nishchaya Time by the Jaina philosophers, to distinguish it from the V yavahára (the practical) time which is not a substance in any sense of the term, but only a measure of duration--hours, days and the like.
It is this vyavahāra aspect of Time which is said to be given à priori to the knowing consciousness, as will appear from the following arguments of Kant and Schopenhauer. *
(1) The idea of Time cannot be derived from expe. rience, for we could not be aware of simultaneity or succession, if it did not underlie thein à priori.
(2) We can think away all objects from Time, but not Time itself.
(3) Time is not a discursive or general idea, for different Times are only parts of the same Time, and the presentation which is given by one object is a perception.
(4) If our presentation of anything were due to ideas, the partial presentations would be first formed, and the general idea, by putting these together. But the endlessness of Time is only possible through limitations of a single underlying Time. Therefore our presentation of Time is an à priori perception.
(5) The axioms of Time, generally, have apodictic certainty, but could not have it, if they were derived from experience. Without the à priori presentation of
* See Kant's Philosophy as Rectified by Schopenhauer,' by M. Kelly.
m
itself
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