Maintaining and controlling the tongue is much more important than paying attention to the right clothes, perfect perfume, permanent trimness and so on. The peak of one's personality is manifested by his words and the kind of speech of him.
There is a Hadith from Imam Hussein (peace be upon him) that says: Do not say anything that reduces your value.
Jila-ul-Ayoon: 205/2
source : erfan.ir