I believe that if you show people the problems and you show them the solutions they will be moved to act.

No problem can withstand the assault of sustained thinking.

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.

We can’t solve problems by using the same kind of thinking we used when we created them.

Twenty-five years ago, the notion was you could create a general problem-solver software that could solve problems in many different domains. That just turned out to be totally wrong.

Engineers like to solve problems. If there are no problems handily available, they will create their own problems.

Problem is not a problem, but problem is that,is your attitude towards the problem.

There are horrible people who, instead of solving a problem, tangle it up and make it harder to solve for anyone who wants to deal with it. Whoever does not know how to hit the nail on the head should be asked not to hit it at all.

If there was a problem, Yo, I’ll solve it.

I think frugality drives innovation, just like other constraints do. One of the only ways to get out of a tight box is to invent your way out.