An electron is real; a probability is not.

Numbers instill a feeling for the lie of the land, and furnish grist for the mathematical mill that is the physicist's principal tool.

As every bookie knows instinctively, a number such as reliability - a qualitative rather than a quantitative measure - is needed to make the valuation of information practically useful.

In order to understand information, we must define it; bit in order to define it, we must first understand it. Where to start?

Information gently but relentlessly drizzles down on us in an invisible, impalpable electric rain.

If quantum communication and quantum computation are to flourish, a new information theory will have to be developed.

Paradox is the sharpest scalpel in the satchel of science. Nothing concentrates the mind as effectively, regardless of whether it pits two competing theories against each other, or theory against observation, or a compelling mathematical deduction against ordinary common sense.