Note 74 — Chapter IV · THE WORLD OF THINGS—(1) SUBSTANCE, QUALITY, AND RELATION
Reading edition
May I say here once for all, that when I oppose practice to intellectual speculation, I must be understood to mean by practice the alteration by myself of some datum of given existence. The activity of thought is thus for me not practical, precisely because the “truths” which I know or contemplate are not quà truths given existences operated upon and altered by the act of thinking.