Be yourself.
Code for fun.
There's hundreds of ways to write the same thing, don't be a dick about your way, but stand up for good practices.
Respect those who accomplish great things, because it was a lot of work, even if they say it was a weekend practice, they took a lot of time to get to that point.
If you code correctly, one line changes are possible.
Learn to desire success more than you fear failure. (I like this one)
Don't become the old people you hate, always try to learn new things, no matter how alien.
Who cares if you're coding on production live? Right? Right?
Comments are for the weak, tracing and prototyping code is not.
Mistakes are inevitable
*It's hard being the smartest person in the room sometimes, wear it with humility rather than pride.
My version of the list. This was fun!