自己的拼搏都是为了下一代的语录

前人栽树，后人乘凉

“The science of government it is my duty to study, more than all
other sciences; the arts of legislation and administration and
negotiation ought to take the place of, indeed exclude, in a manner, all
other arts. I must study politics and war, that our sons may have
liberty to study mathematics and philosophy. Our sons ought to study
mathematics and philosophy, geography, natural history and naval
architecture, navigation, commerce and agriculture in order to give
their children a right to study painting, poetry, music, architecture,
statuary, tapestry and porcelain.”
―  
   John Adams,  
   
     Letters of John Adams, Addressed to His Wife