For half a century, Ferencz, a tenacious 95-year-old, has been on his own Lemkin-esque campaign.
The hooks on the end of final strokes indicate a tenacious mind that holds on to ideas and opinions as tight as a snapping turtle.
Attention all you Darwinists still battling the tenacious Creationists (and losing miserably)!
tenacious te·na·cious (tə-nā'shəs)
Clinging to another object or surface; adhesive.
Holding together firmly; cohesive.