Champion Bloodline Boxers and Puppies

''The character of the Boxer is of the greatest importance and demands the most solicitous attention. He is renowned from olden times for his great love and faithfulness to his master and household. He is harmless in the family, but distrustful of strangers, bright and friendly of temperament at play, but brave and determined when aroused. He is the soul of honesty and loyalty, and is never false or treacherous even in his old age.''

-1938 AKC Boxer Breed Standard