Constants are widely known for the detestable practice of changing their values; we should prepare ourselves against the consequences of such fickleness

Perfect reusable components are not obtained at the first shot.

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

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.

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

I have always felt sympathy towards the biologists who accept to debate creationists. Now I also understand them better; one can fight opinions, not articles of faith.

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.