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When he to whom one speaks does not understand, and he who speaks himself does not understand, that is metaphysics.

Metaphysics means nothing but an unusually obstinate effort to think clearly.

If quantum mechanics hasn't profoundly shocked you, you haven't understood it yet.

It is possible to interpret without observing, but not to observe without interpreting.

Everyone in a complex system has a slightly different interpretation. The more interpretations we gather, the easier it becomes to gain a sense of the whole.

Now, what that means is that there is fundamental indeterminacy from quantum mechanics, but besides that there are other sources of effective indeterminacy.

Semantics, or the study of meaning, remained undeveloped, while phonetics made rapid progress and even came to occupy the central place in the scientific study of language.

All human language draws its nature and value from the fact that it both comes from the Word of God and is chosen by God to manifest himself. But this relationship is secret and incomprehensible, beyond the bounds of reason and analysis.

Like everything metaphysical the harmony between thought and reality is to be found in the grammar of the language.

Often, some people dress something up to make it sound scientific, use scientific words, call themselves doctor something-or-other, and then you look them up, and they're trying to make it sound like something it's not. There's this entire field that's adding the word 'quantum' to everything. It doesn't even make sense in that context.