"Sometimes I get the impression that in Europe we have reached a point when our emotions are becoming more important than our reason. Let’s not allow ourselves to be convinced that it would be good deal if the power of our great the European community would be bargained away for the smaller clout of alleged national sovereignty," Van der Bellen said.
Van der Bellen stressed the EU states were mutually dependent, needed each other and were stronger together then alone.
"Unfortunately, in the European union it has become a bit of a trend to say that we have to decide between love for homeland, on the one hand, and love for Europe, on the other," Van der Bellen noted.
Former leader of the Austrian Green Alternative party (the Greens), Van der Bellen, 73, was elected President of Austria in re-run in October 2016 and officially took office on January 26, 2017.