１銭たりともむだにしないのが彼の信条だ。の英語

He makes a religion of never wasting a penny.

He's in my debt [《口語》 owes me one], so he's unlikely to refuse.

Which he wants is not clear.

He doesn't want to pay that guarantee.

He doesn't heed any advice.

There is no method in his way of doing things.

In the end, I can't grasp his true motive.

I cannot stand his totally selfish attitude.

He is wise enough not to do such a thing.

It may truly be said of him that he is in the world, but not of it.

At worst he'll average .300.

The merest little thing drives him mad.

Advice is no use to him.

I'll convince him not to go.

I'll persuade him not to go.

To do him justice, he is not without some merits.

There is no telling who will be sent in his place.

His conduct is quite free from blame.

He insinuates that he is dissatisfied with something.

He has no regular income upon which to depend.

I won't be taken in by his crafty scheme.

Nothing can confuse him

Nothing can bewilder him

Nothing can flurry him

He never loses his head

He always keeps his head.

He wouldn't be caught dead playing pachinko.

I have some doubts about his attitude.

He must be well, for I hear nothing to the contrary.

You shouldn't let him get away with cheating.