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.

Technology may create a condition, but the questions are what do we do about ourselves. We better understand ourselves pretty clearly and we better find ways to like ourselves

Mathematics is a language. We want scientists to be able to read it, speak it, and write it. But we are are not training them to be grammarians.

The simplest scheme of evolution is one that depends on two processes; a generator and a test. The task of the generator is to produce variety, new forms that have not existed previously, whereas the task of the test is to cull out the newly generated forms so that only those that are well fitted to the environment will survive.

A complex decision is like a great river, drawing from its many tributaries the innumerable premises of which it is constituted.

The intelligent altruists, though less altruistic than unintelligent altruists, will be fitter than both unintelligent altruists and selfish individuals.

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