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If an angel were ever to tell us anything of his philosophy I believe many propositions would sound like 2 times 2 equals 13.
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B 44

 

Georg Christoph Lichtenberg

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Philosophy aims at the logical clarification of thoughts. Philosophy is not a body of doctrine but an activity. A philosophical work consists essentially of elucidations. Philosophy does not result in 'philosophical propositions', but rather in the clarification of propositions. Without philosophy thoughts are, as it were, cloudy and indistinct: its task is to make them clear and to give them sharp boundaries. (4.112)

 

Ludwig Wittgenstein

 

Who equals him in earnestness? Who equals him in eloquence? Who equals him in courage and fidelity to his convictions? If these gentlemen who say they will not follow him have anyone who is equal, let them show him. If they can point out any statesman who can add dignity and grandeur to the stature of Mr. Gladstone, let them produce him!

 

William Ewart Gladstone

 

In the next episode you’ll see two people draw a picture of an angel and notice when they do that they draw the angel from a particularly secular perspective. And I’m certainly not one to begin to criticise the religio-artistic viewpoint of my two charming volunteers but it does make you stop and think what spiritually vacuous times we live in when two young people instinctively draw an angel with a halo attached to the back of its head with a stick.

 

Derren Brown

 

Pure Mathematics is the class of all propositions of the form “p implies q,” where p and q are propositions containing one or more variables, the same in the two propositions, and neither p nor q contains any constants except logical constants. And logical constants are all notions definable in terms of the following: Implication, the relation of a term to a class of which it is a member, the notion of such that, the notion of relation, and such further notions as may be involved in the general notion of propositions of the above form. In addition to these, mathematics uses a notion which is not a constituent of the propositions which it considers, namely the notion of truth.

 

Bertrand Russell

 

I have not as yet been able to discover the reason for these properties of gravity from phenomena, and I do not feign hypotheses. For whatever is not deduced from the phenomena must be called a hypothesis; and hypotheses, whether metaphysical or physical, or based on occult qualities, or mechanical, have no place in experimental philosophy. In this philosophy particular propositions are inferred from the phenomena, and afterwards rendered general by induction.

 

Isaac Newton