persistence

It is Columbo’s persistence and continued presence that Lawson taps into.

"At least the old system rewarded persistence," observed a user on Reddit.

Now, researchers have taken a fresh look at the club to see what its persistence says about us as a society.

“The continuous movement of populations, security challenges in high-risk areas, and persistent vaccine hesitancy all contribute to the persistence of the virus,” Melissa Corkum, the chief of Unicef polio team in Pakistan, told the BBC.

At every turn, it seems that his life was one of constant struggle, defiance and persistence.