Something is usable if it behaves exactly as expected.
Life is a bit hard sometimes, and sometimes you have to step up and fight fights that you never signed up for.
Beware of Methodologies. They are a great way to bring everyone up to a dismal, but passable, level of performance, but at the same time, they are aggravating to more talented people who chafe at the restrictions that are placed on them.
Listen to your customers, not your competitors.
Every day that we spent not improving our products was a wasted day.
It's harder to read code than to write it.