Can You Trust Your Rope?

Can you trust this rope?

You never know how much you really believe anything until its truth or falsehood becomes a matter of life and death. 

It is easy to say you believe a rope to be strong as long as you are merely using it to cord a box. But suppose you had to hang by that rope over a precipice. 

Wouldn’t you then first discover how much you really trusted it?

C. S. Lewis

A Grief Observed