[apotheon]

Nah.

Top Three Rules:

1. Before you start writing something, make sure it'll actually reduce workload in the future. (laziness)

2. Borrow liberally from others -- especially open source code -- because that's the quickest way to success. Why waste time rewriting stuff that others have written, when that'll take three times as long and require lots of testing? (impatience)

3. Eventually write your own version anyway, because you can do better than the other guy. (hubris)

The first is what ensures you're writing software that should be written.

The second is what ensures that you write robust software with reasonable efficiency, and what protects you from getting a reputation as someone who badly implements a lot of cruft that someone else has already done better.

The third is what ensures that you improve as a programmer, rather than just getting into the tired rut of playing Legos with other people's libraries and never learning anything new.