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Because one has to be an optimist to begin an ambitious project, it is not surprising that underestimation of completion time is the norm.

— Fernando J. Corbató On Building Systems That Will Fail (1991)

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More quotes by Fernando J. Corbató

Design bugs are often subtle and occur by evolution with early assumptions being forgotten as new features or uses are added to systems.

On Building Systems That Will Fail (1991)

My definition of elegance is the achievement of a given functionality with a minimum of mechanism and a maximum of clarity.

Regardless of whether one is dealing with assembly language or compiler language, the number of debugged lines of source code per day is about the same!

To our dismay, users who had been enduring several hour waits between jobs run under batch processing were suddenly restless when response times were more than a second.

On Building Systems That Will Fail (1991)

The computer field is intoxicated with change. We have seen galloping growth over a period of four decades and it still does not seem to be slowing down. The field is not mature yet and already it accounts for a significant percentage of the Gross National Product.

On Building Systems That Will Fail (1991)

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Quote text and notes from Wikiquote: Fernando J. Corbató (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.