a boy put his hand into a pitcher full of filberts. he grasped as many as he could possibly hold, but when he tried to pull out his hand, he was prevented from doing so by the neck of the pitcher. unwilling to lose his filberts, and yet unable to withdraw his hand, he burst into tears and bitterly lamented his disappointment. a bystander said to him, "be satisfied with half the quantity, and you will readily draw out your hand."

do not attempt too much at once.

一个小男孩把手伸进装满榛子的袋子里。【【快穿】病态BOSS心尖黑月光】他尽自己所能抓了很多榛子，可是袋子的口太窄了，他的手怎么也拿不出来。面对这两难的困境，男孩号啕大哭。一位旁观者对他说:“如果你能放弃一半的榛子，你就可以把手顺利地拿出来；否则你什么也得不到。”

不要奢求太多。