In a narration of Muslim: Messenger of Allah (PBUH) said, "All of shyness is good."
Commentary: This Hadith enlightens us on the excellence of modesty, which serves the good purpose of preventing man from the disobedience of Allah and from immoral and evil pursuits. Evidently, it has a salutary impact on society. Besides, it keeps man free from sins, and, consequently, he will stand blameless with Allah. From this standpoint, modesty is certainly a thorough good.