Let them take care of themselves.
- Laisse-les prendre soin d'eux-mêmes.
His wife now had to take care of his grandfather, not to mention their two children.
- Sa femme devait maintenant prendre soin de son grand-père, pour ne rien dire de leur deux enfants.
One must take good care of oneself.
- Chacun doit prendre soin de lui-même.