Bruce Schneier Quotes

And 1.1.81 is officially BugFree(tm), so if you receive any bug-reports on it, you know they are just evil lies.

My reply is: the software has no known bugs, therefore it has not been updated.

If I say I've got two versions of Word - that old one from 1982 that's perfect, with zero defects; or the new one that's got all this cool new stuff, but there might be a few bugs in it - people always want the new one. But I wouldn't want them to operate a plane I was on with software that happened to be the latest greatest release!

There are no significant bugs in our released software that any significant number of users want fixed.

With software products, it is usual to find that the software has major 'bugs' and does not work reliably for some users... The lay public, familiar with only a few incidents of software failure, may regard them as exceptions caused by exceptionally inept programmers. Those of us who are software professionals know better; the most competent programmers in the world cannot avoid such problems.

Defect-free software does not exist.

Agitator and the Agitar Management Dashboard lower the barriers to accountability in software development and increase the value of developer testing.

Beware of bugs in the above code; I have only proved it correct, not tried it.

There is a strong movement towards increased accountability for software developers and software development organizations.

When someone builds a bridge, he uses engineers who have been certified as knowing what they are doing. Yet when someone builds you a software program, he has no similar certification, even though your safety may be just as dependent upon that software working as it is upon the bridge supporting your weight.

The fundamental problem with program maintenance is that fixing a defect has a substantial chance of introducing another.

All software sucks.

The reality of most software development is that the consequences of failure are simply nonexistent.

Testing can be used to show the presence of bugs, but never to show their absence!

Apple's advantage is that it designs and builds software together, so if the software isn't excellent, it does the superlative hardware a disservice.

For us, the real goal is to make it so that the software ecosystem is as healthy as possible.

At first I hoped that such a technically unsound project would collapse but I soon realized it was doomed to success. Almost anything in software can be implemented, sold, and even used given enough determination. There is nothing a mere scientist can say that will stand against the flood of a hundred million dollars. But there is one quality that cannot be purchased in this way - and that is reliability. The price of reliability is the pursuit of the utmost simplicity. It is a price which the very rich find most hard to pay.

Accidental stacks considered harmful.

Testing shows the presence, not the absence of bugs.

We flew down weekly to meet with IBM, but they thought the way to measure software was the amount of code we wrote, when really the better the software, the fewer lines of code.

To the extent that I am genuinely educated, I am suspicious of all the things that the average citizen believes and the average pedagogue teaches.

Prussia is great because her people are intelligent. They know the alphabet. The alphabet is conquering the world.

People who are complaining about the Fed are people who've been predicting runaway inflation for five and six years, and it hasn't happened.

A musical education is necessary for musical judgement. What most people relish is hardly music; it is rather a drowsy reverie relieved by nervous thrills.

I was going to be a teacher and improve the world. Teach people with hooks for hands to fingerpaint, and teach bums to draw happy faces on beads.