Core Viewpoint - The article emphasizes the importance of understanding personal financial stability and cash flow before making investment decisions, suggesting that one's ability to endure market fluctuations is closely tied to their income stability and lifestyle [2][3][21]. Group 1: Self-Analysis in Investment - Investment should start from personal financial circumstances, including monthly income, savings, and lifestyle, rather than solely from valuation assessments [3][4]. - The concept of "margin of safety" extends beyond market valuations to include the stability of one's life and cash flow during downturns [3][4]. - Understanding income stability, current income levels, and income growth potential is crucial for determining true risk tolerance [4][5][6]. Group 2: Recognizing Occupational Characteristics - Investors can be categorized based on cash flow structure and psychological traits, which helps in identifying suitable investment strategies [8][9]. - Four types of investors are identified: 1. **High-pressure rigid income earners**: Stable income, can withstand market fluctuations, recommended to adopt a 60:40 stock-bond structure [10][11]. 2. **High-income growth types**: High income but high volatility, should focus on risk management rather than aggressive growth, suggested to consider a balanced stock-bond structure [12][13]. 3. **Uncertain income earners**: Income instability leads to emotional and financial stress, advised to adopt a defensive investment strategy with a 30:70 stock-bond structure [14][15][16]. 4. **Family breadwinners**: Low risk tolerance, need for financial security, recommended to focus on stable investments with a 20:80 or lower risk structure [17][18]. Group 3: Maintaining Stability in Investment and Life - The key to successful investing is not just in selecting assets but in maintaining stability in cash flow and emotional resilience during market downturns [20][21]. - Adjusting risk tolerance is about ensuring longevity in investment rather than merely seeking higher returns [22][23]. - Understanding personal financial conditions and having a buffer for emergencies is essential for enduring market volatility [23][24].