Despite the difficulties he faced, he kept a positive attitude and persisted through the project. H...
Despite the difficulties he faced, he kept a positive attitude and persisted through the project. His dogged perseverance is certainly worth emulating.
In the past I could never make a relationship work. This time I want to stick it out and marry this girl I am dating.
[1] Persist keep going not give up fight to the end[2] perseverance[3] dogged; unyielding; dauntless; persistent[4] stick it out[5] tenacity[6] be relentless