only thinks about

If he only thinks about his career, then he is a bore.

S'il ne pense qu'à sa carrière, alors c'est un ennuyeux.

— Zindagi Na Milegi Dobara (2011)

Tom only thinks about money.

Tom ne pense qu’à l’argent.

She only thinks about herself.

Elle ne pense qu’à elle-même.

Tom only thinks about Mary.

Tom ne pense qu’à Mary.

She only thinks about that Louison.

Elle ne pense qu'à ce Louison.

— Delicatessen (1991)

Mary only thinks about her looks.

Mary ne pense qu’à son apparence.

He only thinks about himself.

Il ne pense qu’à lui-même.