Friends Come And Go But Enemies Accumulate.

When Working On A Project, If You Put Away A Tool That You're Certain You're Finished With, You Will Need It Instantly.

A Failure Will Not Appear Until A Unit Has Passed Final Inspection.

If You Improve Or Tinker With Something Long Enough, Eventually It Will Break Or Malfunction.

Don't Force It... Get A Bigger Hammer.

Enough Research Will Tend To Support Your Conclusions.