“Everything is a subject on which there is not much to be said.”
Studies in Words (1960), ch. 2
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Clive Staples Lewis 272
Christian apologist, novelist, and Medievalist 1898–1963Related quotes

On the Educational Value of the Medical Society (1903)
Context: Surrounded by people who demand certainty, — and not philosopher enough to agree with Locke that "Probability supplies the defect of our knowledge and guides us when that fails, and is always conversant about things of which we have no certainty," the practitioner too often gets into a habit of mind which resents the thought that opinion, not full knowledge, must be his stay and prop. There is no discredit, though there is at times much discomfort, in this everlasting perhaps with which we have to preface so much connected with the practice of our art. It is, as I said, inherent in the subject.

Lefroy, C.J., Persse v. Kinneen (1859), (Lr. Rep.) L. T. Vol. 1 (N. S.), 78.
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Source: The Lords and the New Creatures: Poems (1969), The Lords: Notes on Vision

“Everything is subject to refactoring.”
A Conversation with Ward Cunningham (2003), Collective Ownership of Code and Text
Context: Often as you move comments around and have similar comments adjacent to each other, you find that half of the words can be cut out. Because a sentence says it all if the sentence is in just the right place. On Ward's wiki, the process has been called "refactoring," which is what we call the process in software. Ward's wiki is about software and it has software people on it, so they call it refactoring. Anyplace else it would probably be called editing. So on Ward's wiki, refactoring is an ongoing process. The assumption is that when something turns out to not be ideal, it will be refactored again. Everything is subject to refactoring.

“Everything that is created is subject to destruction.”
VII. On the Nature of the World and its Eternity.
On the Gods and the Cosmos
Context: The cosmos itself must of necessity be indestructible and uncreated. Indestructible because, suppose it destroyed: the only possibility is to make one better than this or worse or the same or a chaos. If worse, the power which out of the better makes the worse must be bad. If better, the maker who did not make the better at first must be imperfect in power. If the same, there will be no use in making it; if a chaos... it is impious even to hear such a thing suggested. These reasons would suffice to show that the world is also uncreated: for if not destroyed, neither is it created. Everything that is created is subject to destruction.
“Imitation can acquire pretty much everything but the power which created the thing imitated.”
Source: Meditations in Wall Street (1940), p. 96
Hartshorne's main reflection on a full 100 years of life.
"A hundred years of thinking about God" (1998)