人はベストを尽くさなくてはならない。
Sentence Analyzer
English Translation
        One must do one's best.
    
Furigana
Romanji
        Hito wa besuto o tsukusanakute wanaranai.
    
Words
            
                人
            
            
                (ひと、ヒト)
            
        
        
            man; person; human being; mankind; people; human (Homo sapiens); humans as a species; character; personality; man of talent; true man; another person; other people; others; adult
        
    
            
                は
            
            
                (は)
            
        
        
            topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
        
    
            
                ベスト
            
            
                (ベスト)
            
        
        
            best; vest
        
    
            
                を
            
            
                (を)
            
        
        
            indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.
        
    
            
                尽くす
            
            
                (つくす)
            
        
        
            to exhaust; to run out; to devote; to serve (a person); to befriend; to do to exhaustion
        
    
            
                ば
            
            
                (ば)
            
        
        
            if ... then; when; and; why don't you...?; the more (one does something); because; since