It is no good getting furious if you get stuck. What I do is keep thinking about the problem but work on something else. Sometimes it is years before I see the way forward. In the case of information loss and black holes, it was 29 years.

---

I would see the end of physics as we know it, but now I think the wonder of discovery will continue long after I am gone. We are close to some of these answers, but we are not there yet.

---

Teori relativitas umum Einstein menyiratkan bahwa alam semesta harus punya permulaan dan, mungkin akhir.

---

There is no unique picture of reality.

---

Intelligence is the ability to adapt to change.

---

I have experimental evidence that time travel is not possible.

---

Money is not everything. There's Master card & Visa.

---

Keeping an active mind has been vital to my survival, as has been maintaining a sense of humor.

---

We are very, very small, but we are profoundly capable of very, very big things.

---

Quiet people have the loudest minds.

---