Terrell Carver,a well-known British Marxologist,compared the courses of intellectual development of Marx and Engels and concluded that the idea of young Engels was more advanced than that of young Marx.

• 英国著名马克思学家卡弗通过对比马克思的思想发展来考察恩格斯思想发展的程度,得出的结论是青年恩格斯思想领先于马克思;