Laymen's opinions on that issue often greatly differ from the experts' opinions.

He is a specialist in that field.

Our opinions differ.

His house is very big.

His opinion is always unique.

I advised him to express his own opinion.

His specialty is physics.

He is what is commonly called a successful person.

He chose to live a life of meditation in the mountains, away from the worldliness.

Csárdás is a type of Hungarian folk music.