Learning is any change in a system that produces a more or less permanent change in its capacity for adapting to its environment.

A wealth of information creates a poverty of attention.

One finds limits by pushing them.

Learning results from what the student does and thinks, and only from what the student does and thinks. The teacher can advance learning only by influencing the student to learn.

Solving a problem simply means representing it so as to make the solution transparent.

Enlightenments, like accidents, happen only to prepared minds.

The proper study of mankind is the science of design.

The engineer, and more generally the designer, is concerned with how things ought to be - how they ought to be in order to attain goals, and to function.

Human beings know a lot of things, some of which are true, and apply them. When we like the results, we call it wisdom.

Innovation has a lot to do with your ability to recognise surprising and unusual phenomena.

Everyone designs who devises courses of action aimed at changing existing situations into preferred ones.

They say the distance between insanity and genius is measured only by success, I believe you can say the same thing about the distance between good and evil.

Future strong is letting go of what no longer serves you. Quickly.

I am passionate about the truth. Passion is very different from fundamentalism.

No matter how good you are at planning, the pressure never goes away. So I don't fight it. I feed off it. I turn pressure into motivation to do my best.

I have little interest in streamlining government or in making it more efficient, for I mean to reduce its size.

There was a man once who said that mothers carry the key of our souls with them all our lives. But you threw mine away

In my judgement, when the United States says there will be serious consequences, and if there isn't serious consequences, it creates adverse consequences.

We fouled up. I did. He got hurt. Badly, maybe. And the god...is not helping him today.

I don't talk about these things if I haven't lived them, and I've hurt people in my life. It's something I still have to think about when I sleep at night.

Ironic that in order to do my life's work, I had to quit my day job.