David Deutsch

Every problem that is interesting is also soluble.

It is possible to build a virtual-reality generator whose repertoire includes every possible environment.

Quantum computation is... a distinctively new way of harnessing nature... It will be the first technology that allows useful tasks to be performed in collaboration between parallel universes.

It is characteristic of science that the full explanations are often seized in their essence by the percipient scientist long in advance of any possible proof.

It is good to be in front of the lens to appreciate more being behind the lens.

The overwhelming majority of theories are rejected because they contain bad explanations, not because they fail experimental tests.