http://news.xinhuanet.com/photo/2007-09/14/content_6721260.htm

http://www.fabulousafter40.com/images/liz-taylor-blue-shadow.jpg

Chinese proverb:
Assume you are an evil man but behave yourself
like a righteous man (xian1 xiao3 ren2 hou4 jun1 zi3)

Marriage itself could be described as a GAME,
which should bears its UNIQUE rule,
no matter what culture, which ethnic group,
old time or modern time, partners have to follow:

compatibility

including

availability and accountability

Hollywood preach: KEEP searching
Church or temple or mosque preach: KEEP the sealed deal.

indeed 外貌条件比较重要
but it changes DRAMATICALLY.