In politics, there are different categories of friendship. My friendship with Greek Prime Minister Alexis Tsipras, for example .

You can consider this carved in stone: I rule out becoming Herman Van Rompuy's successor.

My main concern is to protect people from detriment.

The person who is ahead in the end will have the advantage.

In the highest government office, you have to be ready to bow out at any time, otherwise you are not a free individual anymore.

I'm ready to be insulted as being insufficiently democratic, but I want to be serious ... I am for secret, dark debates.

During our religious instruction in school, we always asked: How can one prove the existence of God? And I have learned that the Catholic Church, which is never at a loss for an answer when it comes to existential questions, responds as follows: This question simply does not arise.