I've known lots of people that are talented and nothing happens. It's not about talent, it's relentless drive.

Be relentless and then you'll break through.

A relentless talent for tactlessness.

Talent is nothing more than a pursued interest.

Nothing and no one can destroy the Chinese people. They are relentless survivors.

[The relentless drive to prove himself, to always come out on top -- as if to validate his father's faith in him -- would win pennants and batting titles but also alienate many around him. He would be characterized as high-strung, brooding, combative, humorless.] His trouble is he takes life too seriously, ... Cobb is going at it too hard.