He who has so little knowledge of human nature as to seek happiness by changing anything but his own disposition will waste his life in fruitless efforts.

Summary

This quote suggests that true happiness cannot be found by constantly seeking external changes or circumstances. Instead, it emphasizes the importance of one's internal disposition and mindset in achieving contentment. The message is that those who are unaware of human nature may spend their lives in futile endeavors if they continuously try to find happiness in external factors, rather than focusing on altering their own perspectives and attitudes. Essentially, the quote advises that lasting happiness is better pursued through personal growth and self-reflection rather than in outward changes.

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