Regarding the appropriateness of "thinking only for yourself", this question needs to be thought about from multiple angles.： ### 1. **Basic position: Self-care is necessary** -**Healthy selfishness**: Prioritizing one's own needs is the basis for survival and development (such as focusing on health and setting personal boundaries). Research on "self-compassion" in psychology has shown that moderate self-attention can improve mental resilience. -**Limited resource allocation**: Just like the principle of oxygen masks-only by ensuring your own safety can you effectively help others. ### 2. **Potential problems that need to be vigilant** -**Relationship cost**: Long-term one-way demands may lead to the breakdown of interpersonal relationships. Harvard University's 75-year "Harvard Adult Development Study" proved that good relationships are the core factor of happiness. -**Cognitive bias**: Excessive self-attention may cause "self-serving bias" (self-serving bias), which makes it difficult for people to look at the problem objectively. -**Opportunity cost**: The "giver effect" in psychology shows that moderate altruistic behavior can improve personal well-being. ### 3. **More balanced recommendations** -**Situational assessment**: Distinguish between "legitimate self-preservation" and "destructive selfishness". Key question: Is your behavior carried out under the premise of respecting the basic rights and interests of others? -**Long-term perspective**: Consider the theory of "repetitive game"-most interactions in life are continuous, and reciprocal strategies often lead to better results. -**Extended thinking**: Philosopher John Rawls' "Curtain of Ignorance" theory recommends that when making a decision, imagine that you may be any one of the affected parties. ### 4. **Thinking tools** Next time you face a choice, you can ask yourself： -Does this decision still make me feel calm in the next 3 months/3 years? -If everyone does this, what will society become? -Is there a third choice that can take care of yourself and important others? In essence, mature self-care is not a binary choice, but a search for wisdom in the dynamic balance of "self—others". You will ask the question itself and have already shown a commendable introspection ability.