Our continued coexistence in Germany, Europe and the world depends on how we show and behave in solidarity with others in the future – on a small scale, but above all on a large scale, i.e. concerning our entire human family. But how can the concept of solidarity be understood at all? How does the phenomenon manifest itself in crises? And what do charity and justice have to do with it? We talk about this with Professor Holger Zaborowski in the ninth episode of our research podcast "WortMelder".