As of today, the Postfix mail transport agent has almost 50,000 lines of code, comments not included.

This will surprise some of your readers, but my primary interest is not with computer security. I am primarily interested in writing software that works as intended.

One bug in an SMTP server can open up the whole machine for intrusion.

I don't expect an overnight change of all desktops to what the US Military used to call B3 level security. And even that would not stop users from shooting themselves into the foot.

Lack of documentation is becoming a problem for acceptance.

I was going to visit IBM for six months as a visiting scientist. Now, six months is a lot of time, so I came with a whole list of projects that I might want to work on.

Defect-free software does not exist.

Most of the effort in the software business goes into the maintenance of code that already exists.

Windows favors multi-threading, which means that a service is implemented by one single process.

When I write software, I know that it will fail, either due to my own mistake, or due to some other cause.

Sure, but competition is good for the user.

Do not trust the cheering, for those persons would shout as much if you or I were going to be hanged.

Some people think I'm saying, 'Women of the world unite -- you have nothing to lose but your men. It's not true. You have nothing to lose but your vacuum cleaners.

The things which are most important don’t always scream the loudest.

Viruses don't just make us sick. They can actually sometimes end up in our genomes.

People always ask me if I wish I were bigger. I tell them no. I always wanted to be a miniature badass.

Donald Trump's campaign manager said that you built a lot of businesses on the backs of little guys.

The best relationships were the ones where both sides went out of their way to make sure the other wasn't disappointed.

Most important part of doing physics is the knowledge of approximation.

Let us swear while we may, for in heaven it will not be allowed

Gradually work your way towards the hard stuff. That will help you avoid injury and you'll be most likely to stick with it.