"A tree without roots won't grow long, and a man without ambition won't stand" is a folk proverb, telling people to have lofty aspirations in order to achieve outstanding achievements.
A sentence similar to the meaning of a tree without roots:
1. You can't let go of your ambition in one day.
2. Be determined to become a Taoist and express your ambition.
Learning from the sea is better than climbing mountains.
Living without an aim is like sailing without a compass.
I live aimlessly, but my life is mediocre.