New forms of thought as well as new subjects for thought must arise in the future as they have in the past, giving rise to new standards of elegance.

　　参考答案：

　　要点：句子框架New formsas well as new subjectsmust ariseas they have in the past, giving rise to。本句难点是：有并列从句。1)主语较为复杂，为并列结构，分别是new forms和new subjects，中间用as well as连接。 2)as在这里引导了一个介词结构(as they have in the past)，have的宾语省略了，其内容与本句主语一致。3)giving rise to分句为非限定性定语从句的从句，省略了which are。

　　译文：同过去一样，将来必然会出现新的思维方式和新的思维对象，给完美以新的标准。