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The utility of a science which enables men to take cognizance of the travellers on the mind's highway, and excludes those disorderly interlopers, verbal fallacies, needs but small attestation.

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More quotes by Porphyry

Things essentially incorporeal, because they are more excellent than all body and place, are every where, not with interval, but impartibly.

Every good thing is gentle and consistent, progressing in good order and not going beyond what is right.

The fleshless diet contributes to health and to a suitable endurance of hard work in philosophy.

Soul, indeed, is a certain medium between an impartible essence, and an essence which is divisible about bodies.

Every body is in place; but nothing essentially incorporeal, or any thing of this kind, has any locality.

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The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents.

H. P. Lovecraft The Call of Cthulhu (1926)

Anyone who believes exponential growth can go on forever in a finite world is either a madman or an economist.

Kenneth Boulding to Kenneth Boulding in: United States. Congress. House (1973)

The greater part of humanity is too much harassed and fatigued by the struggle with want, to rally itself for a new and sterner struggle with error.

Friedrich Schiller On the Aesthetic Education of Man (1794)

The reasonable man adapts himself to the world: the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.

George Bernard Shaw Maxims for Revolutionists (1903)

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Quote text and notes from Wikiquote: Porphyry (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.