How is your life these days? And what is the answer to what we need to do to enrich our lives? What if we all endeavored to live our lives under the following principles, like "that person":1. If you talk too much, then useless words will come out. Listen carefully with both ears and think three times before opening your mouth.2. Invest 1% of your income on buying books. Material items like clothes can become worn and torn, but books retain their distinguished value even as time passes. 3. Do not haggle over price with a street vendor.  .......