What does 'hard-nosed' mean?

あなたが自分に厳しすぎるかもしれない6つの兆候

差別化の指導: 思っているほど難しくない

Jordan Peterson - Why it's so Hard to Sit Down and Study/Work

一生懸命働くことが答えではない |ボブ・プロクター

Heartsrevolution - "Not That Hard To Explain" (mixed by Just Blaze) (Official Video)

Hard Work ISN'T for Everyone

8 Things That Make a Highly Sensitive Person Hard To Love

Jay Z - Hard Knock Life [Explicit]

一生懸命働く vs 賢く働く

Nas - It Ain't Hard to Tell (Official HD Video)

Why Figure 8 knot is NOT hard to untie!

なぜ賢く働くのではなく、一生懸命働くべきなのか

Is Success Luck or Hard Work?

Life is easy. Why do we make it so hard? | Jon Jandai | TEDxDoiSuthep

JAY-Z - Hard Knock Life (Ghetto Anthem)

Why It Is So Hard to Live in the Present

Try Not To Laugh Challenge....(VERY HARD)

Chiké - Hard to Find ft. Flavour (Official Video)

Is Italian Hard to Learn?