儿孙自有儿孙福，莫为儿孙作马牛的英文

the children can take care of themselves when they grow up, and the parents don't have to work too hard for their future

• 儿孙:    children and grand ...
• 自:    self; oneself; one ...
• 有:    5年 fifteen years
• 福:    blessing; happines ...
• 莫:    no one; none; noth ...
• 为:    support; stand for
• 作:    rise; get up; stan ...
• 牛:    cattle; ox