<human>:  What is the best way to invest long-term?
<bot>: The best way to invest long-term is by designing an investment portfolio that is diversified across different asset classes such as stocks, bonds, real estate, and commodities. A portfolio that is spread out across different types of investments can provide protection against market swings and provide the opportunity for growth over the long term. Additionally, it is important to consider a risk management strategy to ensure your investments are properly protected.