To rejoice in another's prosperity is to give content to your lot; to mitigate another's grief is to alleviate or dispel your own.

To rejoice in another's prosperity is to give content to your lot; to mitigate another's grief is to alleviate or dispel your own.

为别人的富裕而高兴，就是满足于自己的命运;减轻别人的悲伤就是减轻或驱散自己的悲伤。

-- Tryon Edwards 特赖恩·爱德华兹