Permanence, perseverance, & persistence
Permanence, perseverance, & persistence, in spite of all obstacles, discouragements, and impossibilities: It is this, that in all things distinguishes the strong soul from the weak.
Permanence: the state or quality of lasting or remaining unchanged indefinitely
Perseverance: quality that allows steadfastness in doing something despite difficulty or delay in achieving success
Persistence: the quality that allows someone to continue doing something or trying to do something even though it is difficult or opposed by other people; the state of occurring or existing beyond the usual, expected, or normal time