Even if people can economically support a retirement at 65, over thirty years of potential inactivity is harmful to cognitive and emotional vitality.

即使在经济条件允许的情况下，人们能够65岁就退休，但超过30年不开发利用自己的潜能对于认知和情感的活跃是有害的。

The authors summarize the fundamental issues of keeping up as physical vitality, emotional flexibility and intellectual freshness.

作者们总结了保持身体活力、情感灵活性和智力保鲜期的根本问题。

Dance is characterized by a kind of formal beauty, so that the spirit of emotions and emotional life to be active, is the art of dance in the soul of dance works and source of vitality.

舞蹈的特征是一种形式美，使精神情感和生命情感得到活跃，是舞蹈艺术中的灵魂，是舞蹈作品和生命力的源泉。