// by Werner Heisenberg | Philosophy Department at St. Anselm College //

The atoms or the elementary particles are not real; they form a world of potentialities and possibilities rather than one of things or facts.

The question of whether from a complete knowledge of the past we can predict the future, does not arise because a complete knowledge of the past involves a self-contradiction.

The natural laws formulated mathematically in quantum theory no longer deal with the elementary particles themselves but with our knowledge of them.