Rogues are a pure DPS class, which means that all three of our ability trees are DPS-focused. We don't have the capability to heal or tank, and our ranged attack arsenal is weaker than a hunter's argument that he deserves a Crystallized Firestone for his Ranseur of Hatred. While there are other pure DPS classes like the mage and warlock, rogue specs have more in common than fire and arcane or destruction and demonology. Our combo point rotation system defines each talent tree's playstyle, and many of our signature spells are shared between all specs.
Because of the similarities between our specs, there are several concepts that apply to all rogues. I've called these axioms, rules, and laws in the past, but the truth is that they're not always inscribed in stone for everyone to read. I'm talking about the knowledge that established rogues take for granted, as we're so used to our habits that we forget why we started them in the first place.