A Quote by Keith Devlin

I firmly believe that mathematics does not exist outside of humans. It is something we, as a species, invent. — © Keith Devlin
I firmly believe that mathematics does not exist outside of humans. It is something we, as a species, invent.
I believe in discovering the love that exists and then trying to understand it. Not to invent a love and try to make it exist, but to find what does exist, and then to see what it is.
Humans lived for several million years as fully wild beings: only in the last 10, 000 did we invent agriculture; only in the last couple of centuries did we invent industry. We are a species that has spent 99 per cent of its history as hunter-gatherers. We haven't had time for our unconscious minds and our unconscious needs to have changed. If you like, our souls have not changed, and this is true whether or not we believe that we have them.
To exist (in mathematics), said Henri Poincaré, is to be free from contradiction. But mere existence does not guarantee survival. To survive in mathematics requires a kind of vitality that cannot be described in purely logical terms.
I firmly believe that there is a God. I firmly believe that there is a Heaven. And I firmly believe that if you go there, it's gonna be great.
No man is disbeliever! Everyone is believer! All men believe in something! If a man does not believe in God, He is a believer too, because he simply believes that God does not exist! Don't give yourself airs just because you believe in something since everyman believes in something! Always be humble!
I would say, if you like, that the party is like an out-moded mathematics...that is to say, the mathematics of Euclid. We need to invent a non-Euclidian mathematics with respect to political discipline.
I personally believe the role of poets as poets (which is something different from our obligations as citizens, community members, humans) is to write poems. I believe this because I am quite sure poetry can do something no other form or writing, or human activity, can, at least not in such a powerful and distilled and undeniable way. And that we need this type of thinking for our survival as individuals and as a species.
But we must here state that we should not see anything if there were a vacuum. But this would not be due to some nature hindering species, and resisting it, but because of the lack of a nature suitable for the multiplication of species; for species is a natural thing, and therefore needs a natural medium; but in a vacuum nature does not exist.
To create a language all of a piece which would be a women's language, that I find quite insane. There does not exist a mathematics which is only a women's mathematics, or a feminine science.
Every village has its simpleton, and if one does not exist they invent one to pass the time.
With the exception of the geometrical series, there does not exist in all of mathematics a single infinite series the sum of which has been rigorously determined. In other words, the things which are the most important in mathematics are also those which have the least foundation.
In a world where people believe in something, then it does exist.
This is the moment when we have to decide: does a world exist outside ourselves and is that world worth fighting for? Another 200 species went extinct today. They were my kin. They were yours, too. If we know them as such, why aren't we fighting to save them with everything we've got?
I believe that art is the highest expression of the human spirit. I believe that we yearn to transcend the merely finite and ephemeral; to participate in something mysterious and communal called 'culture' - and that this yearning is as strong in our species as the yearning to reproduce the species.
When you invent something, you're drawing on reservoirs of knowledge that you already have. It's only when you're faithful to the truth that something can come to you from the outside.
We are compelled, our faith urging us, to believe and to hold—and we do firmly believe and simply confess—that there is one holy Catholic and Apostolic Church, outside of which there is neither salvation nor remission of sins.
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