* "À lui-même": This is the most literal translation and means "to himself". It implies that the action is directed towards the person themselves.
* "Pour son propre compte": This means "on his own account" or "for his own benefit". It emphasizes the action being undertaken for personal gain.
* "Selon son propre désir": This translates to "according to his own desire" or "as he pleases". It implies that the action is driven by the person's own will.
* "À sa guise": This means "at his own will" or "as he wishes". It is similar to "according to his own desire".
To give you the most accurate translation, please provide more context about what you want to express. For example, are you talking about someone acting independently? Making a decision based on their own preferences? Or something else entirely?