PERSEVERANCE.

Perseverance :-  A going on, till success is met. Continued application to anything which one has begun.
Meaning :- Not to lose confidence till the end of the purpose.

Versions :- Once I undertake a job, I leave it only when it is finished.
Medicine is :-  acon. alum. aur-s- bry. caps. cupr. dig. dros. guare. Lac-c. lach. lyc. nat-c. nit-ac. nux-v. phos. Sil. sulph-