frankfurt french president emmanuel macron say tuesday determine engage germany debate want push forward european reform despite cool initial response chancellor angela merkel believe vision go doctor open debate macron say frankfurt due meet merkel attend open annual book fair macron visit first germany since merkel narrowly election last month lose vote far-right party draw support people anger influx million migrants past two years 39-year-old french president speech two days german vote set ambitious vision europe call tight cooperation defense immigration common euro zone budget merkel still begin promise difficult talk build new coalition government caution reform euro zone top priority debate inclusive macron take part panel discussion frankfurt goethe university daniel cohn-bendit green politician best know role paris student protest 1968 gilles kepel political scientist expert middle east macron determine engage germany debate europe reform