Courage

One can always get through one day to the next — except for one day.  And one will get through that one too.

Thus an aphorism of mine.

In the vicinity of the same sentiment, here are a couple of lines from a verse found in Goethe's literary remains:

Mut verloren — alles verloren!
Da wär es besser, nicht geboren!

To lose courage is to lose everything, in which case it would have been better never to have been born.  A few stabs at rhyme-preserving translation:

Of courage shorn, of everything shorn!
In that case better, never to have been born!

Courage lost — everything lost!
Then having been born's too high a cost!

Loss of courage,  something fatal!
Better then, never natal!

Loss of heart — loss of all!
'Twould then have been better, not to be at all!