No solitude no peace of mind. No peace of mind no innovation. No innovation no future.

I think it was Goethe, another great German thinker and poet, who once said: "In der Einsamkeit geschehen die größten Dinge." - "In Solitude the greatest Things happen."

P.S.

I'm not sure if my 'tanslation' reflects the original meaning of the sentence. Please, feel free to correct me if I'm wrong.