what are the main cryptocurrencies, Knowledge

Fool wisdom = value investment+main thinking!Value investment = an undervalued company that finds and holds sustainable profitability for a long time.

Investment is the process of recognizing "economy, policy, value, main force, cycle, mood, position and trust". Fear comes from the unknown, and greed comes from want.Fool wisdom = value investment+main thinking!

Value investment = an undervalued company that finds and holds sustainable profitability for a long time.Continue to attack after washing dishes?