Although Apple and Microsoft are well-known and successful companies, investment advice should not simply prioritize well-known companies. A good investment strategy is usually based on: 1. Personal financial status and goals 2. Risk tolerance 3. Length of investment time 4. Portfolio diversification Stocks of well-known companies may: -Provide stability but limited growth -The valuation is already very high - May not meet your specific investment goals It is recommended before making an investment decision: -Consider your overall investment strategy -Research on different industries and companies -Consult a professional financial adviser when possible -Don't make decisions based only on the company's reputation Please note that I cannot provide personalized investment advice, and market conditions will change at any time.