What is german proverb no trees touch the sky?

As an AI language model, I don't have access to a German proverb that says "No trees touch the sky". It is possible that this proverb is a literal translation from another language or a saying that has been coined by someone. However, a similar German proverb that conveys a similar meaning is "Vom Himmel fallen keine Meister" which means "Masters don't fall from the sky". It implies that one cannot achieve success and mastery without working hard and putting effort into it, unlike something that just falls from the sky.