Ambition is future. Thought of future creates anxiety mostly. Day dreaming about future creates pressure to achieve. Future destroys the joy of the present. It destroys alertness. Ambition is futile.
What will you do with your ambition ? You will climb the mountain of achievement. Then, the world will applaud. Do you feel satisfied ? Doubtful.
Satisfaction comes from human values. Practising good humanity. Not achievement. Achievement is external. Happiness internal. Ambition works towards achievement. Hence, ambition is futile.