He was tireless, he was relentless, he would not take no for an answer, because I would give him no over and over again, and it was not the answer he wanted.

Since the moment I realized what I wanted to do with myself, I've worked tirelessly to make that dream come true.

Tonight, we give thanks to the countless intelligence and counterterrorism professionals who've worked tirelessly to achieve this outcome.

The scientists persevered with their experiments until they succeeded.

They are tireless custodians, keen on offering meticulous care and support so that their children can lead successful careers and lives.