"But also philosophy is not about perceptible..." - Quote by Aristotle
But also philosophy is not about perceptible substances they, you see, are prone to destruction.
More by Aristotle
“In the many forms of government which have sprung up there has always been an acknowledgement of justice and proportionate equality, although mankind fail in attaining them, as indeed I have already explained. Democracy, for example, arises out of the notion that those who are equal in any respect are equal in all respects; because men are equally free, they claim to be absolutely equal.”
“The virtue as the art consecrates itself constantly to what's difficult to do, and the harder the task, the shinier the success.”
“Here and elsewhere we shall not obtain the best insight into things until we actually see them growing from the beginning.”
More on Philosophy
“Asks the Possible of the Impossible, "Where is your dwelling-place?" "In the dreams of the Impotent," comes the answer.”
“What we know is not capable of being otherwise; of things capable of being otherwise we do not know, when they have passed outsideour observation, whether they exist or not. Therefore the object of knowledge is of necessity. Therefore it is eternal; for things that are of necessity in the unqualified sense are all eternal; and things that are eternal are ungenerated and imperishable.”
“The philosopher is in love with truth, that is, not with the changing world of sensation, which is the object of opinion, but with the unchanging reality which is the object of knowledge.”
More on Existence
“In certain favorable moods, memories -- what one has forgotten -- come to the top. Now if this is so, is it not possible -- I often wonder -- that things we have felt with great intensity have an existence independent of our minds; are in fact still in existence? And if so, will it not be possible, in time, that some device will be invented by which we can tap them?”
“ALL things in Nature work silently. They come into being and possess nothing. They fulfil their functions and make no claim.”
“A man is a golden impossibility. The line he must walk is a hair's breadth. The wise through excess of wisdom is made a fool.”