I believe the answer would be Working to leave the world better than we found it. The other answers are either depressing or have nothing to do with the text. 
        
             
        
        
        
Answer:
Here is Your answer 
Explanation:
1. Whatever goes upon two legs is an enemy.
2. Whatever goes upon four legs, or has wings, is a friend.
3. No animal shall wear clothes.
4. No animal shall sleep in a bed.
5. No animal shall drink alcohol.
6. No animal shall kill any other animal.
7. All animals are equal.
 
        
             
        
        
        
What poem is this? I can help you if I can read the poem.
        
                    
             
        
        
        
Answer:
What math , science, history ??