If you're talking 100 years, there's no doubt in my mind that all jobs will be gone, including creative ones. And 100 years is not far in the future - some of our children will be alive in 100 years.

When it costs you the same amount of manufacturing effort to make advanced robotic parts as it does to manufacture a paperweight, that really changes things in a profound way.

Restrictions are difficult to enforce in a world where anybody can make anything.

If you gave kids peas that didn't look like peas and said they were a space shuttle, they're much more apt to eat them because it's now playtime.

Basically, any material you can squeeze, melt or generate into a powder, you can print.

We tend to think of science as finding equations, like E=MC2, that are simple and elegant. But maybe some theories are complicated, and we can only find the simple ones.

A hexagonal piece of cheese is a lot better than a square piece of cheese.

Similar to computer technology in the '60s, 3-D printing is a universal technology that has the potential to revolutionize our life by enabling individuals to design and manufacture things.

I think, once recipes become digital, pirating a digital recipe and all the questions that you have with music and so forth will become pertinent to food as well.

It's very difficult to talk about religion in Iran because religion has gotten so mixed up with politics.

The soul can split the sky in two and let the face of God shine through.

The word reality frightens me.

There is not a good work which the hand of man has ever undertaken, which his heart has ever conceived, which does not require a good education for its helper.

I used to have trust with reporters. Give them scoops. Those were the old days. It's very strange, when you give a story and it doesn't come out the right way.

Exercise thy lasting youth defends.

We see things like reciprocity which are fairly central to our view of ethics. But if you're talking about a set of worked-out rules on what we are supposed to do then, yes, it is a human product.

No one regards what is before his feet; we all gaze at the stars.

It is necessary to put yourself out for rejection, and accept that you will be rejected.