Investment in reliability will increase until it exceeds the probable cause of errors, or until someone insists on getting some useful work done.

The universe is simmering down, like a giant stew left to cook for four billion years. Sooner or later we won’t be able to tell the carrots from the onions.

When working on a project, if you put away a tool that you're certain you're finished with, you will need it instantly.

Don't force it... get a bigger hammer.

A failure will not appear until a unit has passed final inspection.

Friends come and go but enemies accumulate.

If there is a possibility of several things going wrong, the one that will cause the most damage will be the one to go wrong.