There is very little point in trying to urge the world to mend its ways as long as that world is still convinced that its ways are perfectly adequate.

I now have had my foggy crystal ball for quite a long time. Its predictions are invariably gloomy and usually correct, but I am quite used to that and they won't keep me from giving you a few suggestions, even if it is merely an exercise in futility whose only effect is to make you feel guilty.

Beware of "the real world". A speaker's apeal to it is always an invitation not to challenge his tacit assumptions.

I don't need to waste my time with a computer just because I am a computer scientist.

Aim for brevity while avoiding jargon.

The tools we use have a profound and devious influence on our thinking habits, and therefore on our thinking abilities.

In passing I draw attention to another English expression which often occurs in Dutch texts: "the real world". In Dutch - and I am afraid not in Dutch alone - its usage is almost always a symptom of a violent anti-intellectualism.