Physiologically, man in the normal use of technology (or his variously extended body) is perpetually modified by it and in turn finds ever new ways of modifying his technology. Man becomes, as it were, the sex organs of the machine world, as the bee of the plant world, enabling it to fecundate and to evolve ever new forms. The machine world reciprocates man's love by expediting his wishes and desires, namely, in providing him with wealth.

What goes on inside the school is an interruption of education.

All meaning alters with acceleration, because all patterns of personal and political interdependence change with any acceleration of information.

The 'content' of any medium is always another medium.

Until writing was invented, man lived in acoustic space: boundless, directionless, horizonless, in the dark of the mind, in the world of emotion.

We have be-come irrevocably involved with, and responsible for, each other.

Any understanding of social and cultural change is impossible without a knowledge of the way media work as environments.