An animal that embarks on forming states without greatly restricting egoism will perish.

For a solitary animal egoism is a virtue that tends to preserve and improve the species: in any kind of community it becomes a destructive vice.

The verbal interpretation, on the other hand, i.e. the metaphysics of quantum physics, is on far less solid ground. In fact, in more than forty years physicists have not been able to provide a clear metaphysical model.

The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.

Quantum physics thus reveals a basic oneness of the universe.

The world is given to me only once, not one existing and one perceived. Subject and object are only one. The barrier between them cannot be said to have broken down as a result of recent experience in the physical sciences, for this barrier does not exist.