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

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

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.