The optimist thinks this is the best of all possible worlds. The pessimist fears it is true.

The powerful notion of entropy, which comes from a very special branch of physics … is certainly useful in the study of communication and quite helpful when applied in the theory of language.

In the material sciences these are and have been, and are most surely likely to continue to be heroic days.

We know too much for one man to know too much.

You can certainly destroy enough of humanity so that only the greatest act of faith can persuade you that what's left will be human.

I think that all things which evoke discipline: study, and our duties to men and to the commonwealth, war, and personal hardship, and even the need for subsistence, ought to be greeted by us with profound gratitude, for only through them can we attain to the least detachment; and only so can we know peace.

The best way to send information is to wrap it up in a person.