# Quote — David Deutsch, The Fabric of Reality

> The truly privileged theories are not the ones referring to any particular scale of size or complexity, nor the ones situated at any particular level of the predictive hierarchy—but the ones that contain the deepest explanations.

- Author: [David Deutsch](https://www.leafyquotes.com/david-deutsch.md)
- Book: [The Fabric of Reality](https://www.leafyquotes.com/david-deutsch/the-fabric-of-reality.md)
- Source: [Wikiquote](https://en.wikiquote.org/wiki/David_Deutsch#The_Fabric_of_Reality_(1997)) ([CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/))
- Quote page: https://www.leafyquotes.com/david-deutsch/the-fabric-of-reality/the-truly-privileged

## More from this book

> The next chapter is likely to provoke many mathematicians. This can't be helped. Mathematics is not what they think it is.

[Quote page](https://www.leafyquotes.com/david-deutsch/the-fabric-of-reality/the-next-chapter.md)

> The quantum theory of parallel universes is not the problem, it is the solution. It is not some troublesome, optional interpretation emerging from arcane theoretical considerations. It is the explanation—the only one that is tenable—of a remarkable and counter-intuitive reality.

[Quote page](https://www.leafyquotes.com/david-deutsch/the-fabric-of-reality/the-quantum-theory.md)

> Reality contains not only evidence, but also the means (such as our minds, and our artefacts) of understanding it. There are mathematical symbols in physical reality. The fact that it is we who put them there does not make them any less physical.

[Quote page](https://www.leafyquotes.com/david-deutsch/the-fabric-of-reality/reality-contains-not.md)