Why are do the Eldar feel so superior towards the Imperium? In various instances we are shown and told that a Space Marine is way stronger (raw strength) and close to the dexterity of an Eldar warrior. It would be understandable if they would say that about the Orkz / Tau but the Imperium has shown time and again that they are not only powerful but also smart.
So all in all, why are the elliptical-heads so smug?
LE: I do not care about real-life comparisons, they are not what I'm looking for here. I'm asking how a 60+ million years race can consider itself superior over a 70 thousand years species considering the fact that they kind of eat dirt every time they show up. Is there a reason for their superiority complex (expect for making up for giving birth to Slaanesh (easily corrupted xeno-scum)) like making contact with the Imperium / humans in general and someone shot himself in the foot or something to prove that humanity is stupid enough to be called Mon-Keigh?
All books, codexes, drunk jokes by GW or any other "official" sources are welcome. (take the language with a bit of fun, no hate around Sol Sector please)