The passage argues that a good life should be judged by its quality rather than its duration. In the fuller context, Robert Jordan reflects on the possibility that he may have only a short time left. Instead of measuring life by conventional expectations of longevity, he treats the time actually available as capable of containing a complete and meaningful experience.

The remark also links contentment with accepting limits. Complaining about circumstances or continually demanding what cannot be obtained can make the present seem inadequate. By contrast, recognising what is possible allows attention to shift towards what remains valuable now. In For Whom the Bell Tolls, this idea is shaped by war and the immediate possibility of death, giving it greater urgency. The quotation does not suggest that hardship should simply be ignored, but that the worth of a life need not depend on reaching a prescribed age or receiving everything one hoped for.

Full quotation

“There is nothing else than now. There is neither yesterday, certainly, nor is there any to-morrow. How old must you be before you know that? There is only now, and if now is only two days, then two days is your life and everything in it will be in proportion. This is how you live a life in two days. And if you stop complaining and asking for what you never will get, you will have a good life. A good life is not measured by any biblical span.”