“It is remarkable of the simple substances that they are generally in some compound form.”

“Now it is one great object of this work, to shew the importance and advantage of ascertaining the relative weights of the ultimate particles, both of simple and compound bodies, the number of simple elementary particles which constitute one compound particle, and the number of less compound particles which enter into the formation of one more compound particle.”

“The reckoning with idealism as a view of life is universal, but it also touches on something central in art-its life's substance. One must understand that it is impossible to distinguish between a picture’s form and its substance. As the flower's structure is governed by the intentional tension (when it loses the sap the form is lost), so also with art the substance creates the tension. Form and substance are one and the same. Form is the life expression and substance the living painting.”

“Now the compound or composite may be supposed to be naturally capable of being dissolved in like manner as being compounded; but that which is uncompounded, and that only, must be, if anything is, indissoluble. …And the uncompounded may be assumed to be the same and unchanging, where the compound is always changing and never the same? …Is that idea or essence, which in the dialectical process we define as essence of true existence—whether essence of equality, beauty, or anything else: are these essences, I say, liable at times to some degree of change? or are they each of them always what they are, having the same simple, self-existent and unchanging forms, and not admitting of variation at all, or in any way, or at any time?”

“There are neither graves nor death in Nature; there are various forms of existence, some of which enable us to be chemists, others only chemical substances.”

“The best teacher is not the one who knows most but the one who is most capable of reducing knowledge to that simple compound of the obvious and wonderful.”

“Exchange value forms the substance of money, and exchange value is wealth.”

“It was necessary that the very noble form of man, which is the image and likeness of God… should be joined to the substance of dust and darkness, the source of all defect and loss. For these reasons the Creator gave to the form of man power, rule, and dominion over the substance;—the form can subdue the substance, refuse the fulfillment of its desires, and reduce them, as far as possible, to a just and proper measure.”

“No form remains permanently in a substance; a constant change takes place, one form is taken off and another is put on.”

“I find, Andrew Keen's, his whole pitch, I think he was just pure and simple looking for an angle, to create some controversy and sell a book, I don't think there's any substance whatever to his rants.”