To tell the truth, people will really die if they don't do it for themselves. Because people are selfish animals. For example, the rebuttal you long for is not that you disagree with this view, but that you need it. If you explain it this way, you are a believer in this sentence yourself. Who can refute you? But because of this, how to explain "for yourself" has become the key to this sentence. Because the concept of self itself is difficult to be locked. And their own scope is not always their own. Many times we find that our scope is far beyond our bodies. For example, your family can be yourself, your children are yourself, your body is yourself, and your soul is yourself. So many people have conflicts, how can we not be destroyed by the devil take the hindmost? So we have to prove the paradox of this sentence. Only self-derived connotation. Make yourself unclear, if so, this sentence is self-contradictory. This can lead to numerous attacks on this sentence. For example, if your body is yourself, then your soul is not yourself? Individuals and teams always have interests and conflicts of interest. Who are you when your interests conflict with those of the team? When your only son is in danger, you are faced with the choice of taking risks for him or letting him take risks. At this moment, what are you, what are you not, and then act? People have love, love houses, and love things. Even on the contrary, there are words that people die for money and birds die for food. Wealth and life, obviously life can represent the concept of self. But why are there corrupt officials? Don't they know that corruption will ruin their lives? Why don't people with lofty ideals know that being a traitor can save their lives? Obviously, they have expanded their concepts. After this concept is extended, what is self is blurred. Became a person. Everyone is human, and the devil takes the hindmost. This is the key to deciphering this statement.