And if something can't be measured, it's hard even to argue about, let alone agree on.

而且如果某些事情不能被计量，能否进行争论都很难，更何况取得一致意见。

Happiness is like something priceless. You will never ever be able to afford it, let alone being in possession of it permanently.

幸福，也像一件无价之宝，没有任何人能够买得起，更不用说永久的拥有它。