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.

If you are not prepared to resign or be fired for what you believe in, then you are not a worker, let alone a professional. You are a slave.

I reject the notion that human beings have a single intelligence, which can be drawn on for the full range of problem solving.

One must exploit the asynchronies that have befallen one, link them to a promising issue or domain, reframe frustrations as opportunities, and, above all, persevere.

Teaching which ignores the realities of children will be rejected as surely as any graft which attempts to ignore the body's immune system.

I am knowledgeable enough about the world of prizes to realize that there is a large degree of luck - both for the recognitions that you receive and those that you did not.

Don't assume that the way that one searches and researches is the same from one era to another - it isn't. In the 19th century, most research was done by amateurs: either individuals who were rich or individuals who had a day job. In the 20th century, most researchers worked at universities or think tanks and received money from the government or from foundations to pursue their work. In our time, the sources of support and the locations for research may be quite different.