- The same work under the same conditions will be estimated differently by ten different estimators, or by one estimator at ten different times
- The most valuable and least used word in a project manager's vocabulary is "NO"
- You can con a sucker into committing to an unreasonable deadline, but you can't bully him into meeting it
- The more ridiculous the deadline, the more it costs to meet it
- The more desperate the situation, the more optimistic the situatee
- Too few people on a project can't solve the problem - too many create more problems than they solve
- You can freeze the clients specifications, but he won't stop expecting
- Frozen specifications and the abominable snowman are alike :- they both are myths, and they both melt when sufficient heat is applied
- The conditions attached to a promise are forgotten, and the promise is remembered
- What you don't know hurts you
- A client will tell you anything you ask - but nothing more
- Of several possible interpretations of a communication, the least convenient one is the only correct one
- What is not on paper has not been said
- No major project is ever installed on time, within budget, and with the same staff that started it
- Projects progress quickly until they become 95% complete; then they remain at 95% complete forever
- If project content is allowed to change freely, then the rate of change will soon exceed the rate of progress
- No major system is ever completely debugged; attempts to debug a system inevitably
- Introduce new bugs that are even harder to find
- Project teams detest progress reporting because it vividly demonstrates their lack of progress
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