原文英文：The most merciful thing in the world， I think， is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of infinity， and it was not meant that we should voyage far.

如今人们对每样东西的价格了如指掌，对它们的价值却一无所知。

失去一个父母可能被视为不幸；失去两个则像是疏忽。