危険を冒さなければ何も得られない。
Nothing venture, nothing have.
Don't risk your neck over something foolish.
I don't want to run such a risk.
I don't want to take risks.
That's too risky; let's play it safe.
I (can) assure [promise] you there is no danger.
You can do it at your peril.
I will go at all risks―at all hazards.
Don't put the company in danger.
He would not turn a hair in the presence of any danger.
a constant and imminent peril
危険に臨んでも慌てない
He shows presence of mind―He keeps his head―He is cool and steady―in the presence of danger.
We advanced in defiance of danger.
problems unattended with danger