Why is it that we rejoice at a birth and grieve at a funeral? It is because we are not the person involved.

Why is it that we rejoice at a birth and grieve at a funeral? It is because we are not the person involved.

为什么我们在出生时高兴，在葬礼上悲伤?这是因为我们不是相关的人。

-- Mark Twain 马克·吐温