Despite the unrivaled empirical success of quantum theory, the very suggestion that it may be literally true as a description of nature is still gree…

- David Deutsch

If you can’t program it, you haven’t understood it.

- David Deutsch

Discovering a new explanation is inherently an act of creativity.

- David Deutsch

Is the human race a universal constructor?

- David Deutsch

Our best theories are not only truer than common sense, they make more sense than common sense...

- David Deutsch

Base metals can be transmuted into gold by stars, and by intelligent beings who understand the processes that power stars, but by nothing else in the…

- David Deutsch

If we can't program it, we can't understand it.

- David Deutsch

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

- David Deutsch

Like every other destruction of optimism, whether in a whole civilisation or in a single individual, these must have been unspeakable catastrophes fo…

- David Deutsch