Return something not for the possibility of a reward, but for the joy of giving a gift which you did not have to pay for.

Return something not for the possibility of a reward, but for the joy of giving a gift which you did not have to pay for.

回报不是为了可能得到回报，而是为了你不用花钱就能得到礼物的快乐。

-- Jarod Kintz 贾罗德·金茨