各门科学从不同的角度研究“交往”问题,但在马克思主义产生以前,没有一家学说把“交往”与人类的社会实践活动联系起来考察。因此,在马克思主义产生之前,人们始终没有找到科学地说明人类社会交往活动的钥匙。主体间的交往性本是马克思主义实践概念中的应有主义,它是与实践过程中主客体之间的对象化活动不可分离的一种基本特性,实 Various sciences study the problem of “communication” from different perspectives. However, no one doctrine has examined the relationship between “communication” and human social practice before the emergence of Marxism. Therefore, before the emergence of Marxism, people never found the key to scientifically describing human social interaction. The intercourse between subjects is the contingentism in the concept of Marxist practice. It is an essential characteristic which can not be separated from the objectification between the subject and the object in practice