A good cause can become bad if we fight for it with means that are indiscriminately murderous. A bad cause can become good if enough people fight for it in a spirit of comradeship and...

A good scientist is a person with original ideas. A good engineer is a person who makes a design that works with as few original ideas as possible. There are no prima donnas in engineering.

You ask: what is the meaning or purpose of life? I can only answer with another question: do you think we are wise enough to read God’s mind?

It is characteristic of all deep human problems that they are not to be approached without some humor and some bewilderment.

We must be careful not to discourage our twelve-year-olds by making them waste the best years of their lives preparing for examinations.

There is a great satisfaction in building good tools for other people to use.

Science is my territory, but science fiction is the landscape of my dreams.

If we had a reliable way to label our toys good and bad, it would be easy to regulate technology wisely. But we can rarely see far enough ahead to know which road leads to...

The technologies which have had the most profound effects on human life are usually simple. A good example of a simple technology with profound historical consequences is hay. Nobody knows who invented hay, the idea...

Politically speaking, of course, they have to keep flying it a bit longer. Hopefully, it will close down before they crash it again.

The beauty in the genome is of course that it’s so small. The human genome is only on the order of a gigabyte of data…which is a tiny little database. If you take the entire...

It’s a welfare program for the industry, so it’s hard to turn off.

The question that will decide our destiny is not whether we shall expand into space. It is: shall we be one species or a million? A million species will not exhaust the ecological niches that...

It was people risking their lives to do something that hadn’t been done before. That’s certainly something good.

God is what mind becomes when it has passed beyond the scale of our comprehension.

Technology is a gift of God. After the gift of life it is perhaps the greatest of God’s gifts. It is the mother of civilizations, of arts and of sciences.

It’s better to get mugged than to live a life of fear.