What are the famous quotes about youth?

Answer: Please read the following: Don’t let the day pass by idlely, youth will never come again. Youth is the youth of a year, and youth is the spring of life. A hundred days cannot pass by in vain, youth will never come again. Young people are full of vitality and as abundant as spring water. No matter what era, youth are always characterized by their ideals and fantasies. This is not a fault, but a valuable quality.