To a true believer it is a peaceful religion.
To others, it is not peaceful simply because they don't know what is Islam. In the Quran, there is a verse which says, "Invite (all) to the Way of your Lord with wisdom and beautiful preaching; and argue with them in ways that are best and most gracious: for your Lord knows best, who have strayed from His Path, and who receive guidance" (Surah 16:125).
To others, it is not peaceful simply because they don't know what is Islam. In the Quran, there is a verse which says, "Invite (all) to the Way of your Lord with wisdom and beautiful preaching; and argue with them in ways that are best and most gracious: for your Lord knows best, who have strayed from His Path, and who receive guidance" (Surah 16:125).
