Perhaps, each of us once held a "touchstone" in our hands. However, we didn't find it valuable, so we threw it away. And the youth we have is not just a shining "touchstone"? Youth is the best time in life, full of vigor and vitality; More importantly, youth can create brilliant life and unlimited wealth. Therefore, when you have youth, you should know how to cherish it, seize it tightly, and don't let the good times be wasted.