Dangers await only those who do not react to life.
Source, in full
Speech in East Berlin (7 October 1989), in German: Gefahren warten nur auf jene, die nicht auf das Leben reagieren, but often cited as "Wer zu spät kommt, den bestraft das Leben", hence the English translation: "He who comes too late is punished by life". (Frankfurter Allgemeine, 3 October 2004)