Abstract

When inquiring into the issues related to motion in substance and its relation to the issue of stability of knowledge, the question which might arise is how it is possible for our knowledge not to undergo any change or evolution and, in other words, to remain consistent despite the trans-substantial motion.To respond this question on the basis of Mulla Sadra's principles, one can say that, firstly, change and transformation are other than motion, and, secondly, those who insist on the unity of subject in objects seem not to heed the fact that viewing changing and evolving objects as one thing is a point that the mind has abstracted from the relations among its own perceptions.