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

Claude Shannon, the founder of information theory, invented a way to measure 'the amount of information' in a message without defining the word 'information' itself, nor even addressing the question of the meaning of the message.

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

Science has taught us that what we see and touch is not what is really there.