Core Viewpoint - The article emphasizes the importance of value investing principles applied to index funds, highlighting their lower risk due to diversification and the potential for long-term gains [3][4]. Group 1: Investment Philosophy - The investment philosophy is based on the equation: good variety + good price + long-term holding = good returns [4]. - Value investing, when applied to index funds, mitigates the risk of individual stock failures, as index funds consist of a diversified basket of stocks [3]. Group 2: Market Trends - The number of index fund options in the A-share market has increased, allowing for the application of the same investment principles to excellent industries and active funds [5]. Group 3: Framework and Detail - A solid investment framework is likened to a skeleton; it requires additional details and inputs to be effective. The method of "output driving input" is used to enhance understanding through various forms of content [6]. Group 4: Psychological Resilience - Understanding investment knowledge is one aspect, but the ability to remain steadfast during market fluctuations is crucial for success [7].