40.) Always acknowledge your sources and inspirations.

No one will think less of you for having built on the shoulders of other men. In fact, most people will think better of you for the acknowledgment.

Rant

We need to established a universal method for signaling sarcasm online.  Maybe a font?

39.) Bad things happen quickly; it's the good things that take time.

For some reason, people always expect life to work the other way around, but it never does.

38.) If you cheat in engineering classes, you will kill people later.

For your own sake and everyone else, either quit or learn the material.

Rant

A decade into Web 2.0, I've realized that ninety percent of users who actually take the time to post reviews of products and services online are polarized into people pissed over a single bad experience and the type of people who over-tip pizza deliver boys out of misplaced guilt over being offered service in an age where McDonaldization has become the norm.  Both sets of opinions are completely useless to the average consumer.

37.) Want to be a leader? Wash the Dishes When Nobody Else Will.

Source: "Wash the Dishes When Nobody Else Will" by Sash Catanzanzarite, February 8, 2011.

36.) If you aren't comfortable placing the same information on a sign in your front yard, don't put it online.

Your online life is more public than you think.  Always.