Translation of weltlich

In the meantime I am listening to some Spanish CDs. They are intended for the car, but no one can tell you when to listen to it, how many times and how often. Please understand that I work a lot.
We begin to talk about 'we' and 'they', which makes us partly discriminating. As a whole, I guess that all of us have some predispositions, but the difference is, that some know how to supress it.
The same day that I gave my last presentation about our pilot project I flew away. The first lag was NYC's airport John F. Kennedy. I left Europe after midnight and arrived there at five o'clock, more or less.