It's quite an interesting observation and seems to hold true across the board.

The guide made many interesting observations and explained the British legal system.

However, interesting observations in support of it have been made.

Whether you agree or not, he makes some very interesting observations.

And here is the interesting observation: they are probably wrong.

A. That's an interesting observation but clearly the companies who paid for the ads want them to run.

But their most interesting observation had to do with the movie's impact on the public.

"I'm sure that you have all sorts of interesting observations to make."

I hope that you will continue your very interesting observations.

This is an interesting observation that was not explored further in the present study.