But physics and astronomy offered the hope of understanding where we came from and why we are here. I wanted to fathom the depths of the universe. Maybe I have succeeded to a small extent, but there's still plenty I want to know.

Fizica cuantică ne spune că oricât de amănunțite ar fi observațiile noastre asupra prezentului, trecutul (neobservat), la fel ca viitorul, e nedefinit și există doar ca un spectru de posibilități. Conform fizicii cuantice, universul nu are doar un singur trecut sau o singură istorie.

Today will still yearn to know why we are here and where we came from. Humanity's deepest desire for knowledge is justification enough for our continuing quest. And our goal is nothing less than a complete description of the universe we live in.

The people who actually make the advances in theoretical physics don't think in these categories that the philosophers and the historians of science subsequently invent for them

However, if we do discover a complete theory, it should in time be understandable in broad principle by everyone, not just a few scientists. Then we shall all, philosophers, scientists, and just ordinary people, be able to take part in the discussion of the question of why it is that we and the universe exist. If we find the answer to that, it would be the ultimate triumph of human reason – for then we would know the mind of God.

God abhors a naked singularity.

[If] there were such a God, I would like to ask however did he think of anything as complicated as M-theory in eleven dimensions.

Jika Bumi berhenti berputar, maka menurut hukum Newton benda apapun yang tak terikat ke Bumi bakal terus bergerak dengan kecepatan perputaran Bumi (1100 mil per jam atau 1770 km per jam di khatulistiwa)

There should be no boundary to human endeavor.