Being simple is the most sophisticated thing you can ever have. This is true because whatever is being done for the sake of show-off, it will come to an end one day. Being simple is your true beauty which you will surely come across at the end of the day.
Hereafter, being simple gives you an elegant and sophisticated look without any fake show-off. The beauty done with the jewelleries, makeups will attract others for a while but your true beauty is your simplicity.
Being simple inner and outer is one of most good thing. Your makeups and others things will fade with a time but your simplicity and the real you will be there for ever.
So be simple and elegant to be the most sophisticated.