As Mr. Nagle so competently points out, almost no one uses Eiffel; in fact until recently there were only 9 users. But now a 10th person just started, so we are holding a conference, appropriately titled the TENTH Eiffel USER conference, to celebrate.

Incorrect documentation is often worse than no documentation.

You can either have software quality or you can have pointer arithmetic, but you cannot have both at the same time.

Writing a class without its contract would be similar to producing an engineering component (electrical circuit, VLSI (Very Large Scale Integration) chip, bridge, engine...) without a spec. No professional engineer would even consider the idea.

The role of a trainer or consultant is to empower the customer, not to make himself indispensable

C++ is the only current language making COBOL look good

I think Smalltalk is inappropriate for serious industrial developments. After all, run time is a little late to find out whether you have a landing gear.