Jurgen Habermas

What was new was the symbolic force of the targets struck. The attackers did not just physically cause the highest buildings in Manhattan to collapse; they also destroyed an icon in the household imagery of the American nation.

If a man made himself an expert in any particular branch of human activity, there would result the strong tendency that a peculiar aptitude towards the same branch would be found among some of his descendants.

Nine years after I had my own accident, I find that in trying to go back to doing those things that I used to do just doesn't fit. Everything seems to just fall apart. I don't know why but I think it is because I am this new creature.

By irreducibly complex I mean a single system composed of several well-matched, interacting parts that contribute to the basic function, wherein the removal of any one of the parts causes the system to effectively cease functioning.