その場限りの言いのがれの英語

He says things on the spur of the moment.

being adept at showing one's adherence or devotion only through one's words and not through one's actions

Saying and doing are two different things.

How dare you say such a thing.

They say such things out of envy.

To say is one thing, to do is another.

the act of misstating (something)

He is constantly harping on the same string.

You may say your say.

speak reason

He talks like that, but it is all talk.

It is plainly stated―broadly hinted―that...

If you have something to say, just say it.

how can you say such a thing?

of a person, being a big talker

Saying is quite different from doing.

He always speaks from the purpose.

That is what I always say.

I only stated the obvious.

He is always saying silly things.

They say such things out of envy.

. . .even if you said such a thing

It is no use trying to excuse yourself.

He evaded the question with tact.

Granting that he was drunk,―Granted that he was drunk,―that is no excuse for his behaviour.

How dare you !

He puts in my mouth words I never used.

You may speak without reserve.

Don't state the obvious.

One man says this, and another says that.