若い時は二度ない、どんとやれ、男なーら、人のやれないことをやれ。の英語

You're only young once. Be a man and take on the world.

You're only young once.

There is nothing that a bunch of youngsters like you could do.

a young man who does not do what he should, but enjoys himself

As long as he is honest, any boy will do.

While you're young, you shouldn't worry about doing everything properly.

Young people are apt to behave that way.

Young men have no perseverance―no persistence―no sustaining power―no staying-power―no stay in them.

The young tend to complain of everything.

It's all right for young people to make mistakes.

Modern youth are wanting in perseverance

Young men nowadays lack staying power.

Keep in mind that you're not as young as you used to be.

Youth will be indiscreet.

Young people are apt to be indiscreet

Young people will be indiscreet.

Sow your wild oats while you are young, and sober down with age!

I have to keep telling myself I am not as young as I think.

Crabbed natures do not grow well.

Young people are apt to fall into error

Young people are liable to error

Young people will be indiscreet

Young people will be young people.

I think young people should know you won’t have much time for yourself when you start working.

Young people usually have more energy than the old.

For the moment your youth enables you to hold out. But the strain is bound to tell on your health.

you may accuse me of being and old fuddy-duddy trying to stop young people having fun

We want a young man. As long as he is honest, any boy will do.

Young people have no sense of danger at all.

Looking back on those days, I think young people should enjoy their youth while it lasts.