Is Islam the only true religion?

All the religions of the world have some logic to be a great religion to follow. Islam has its own strength and beauty. I strongly believe that in order to prove ourselves right and the best, we should not advocate to prove others to be bad or unveil their dark history. In the last deedar at Lisbon, one non ismaili spouse requested to Hazar Imam that she would like to be in this community and follow Ismaili religion. Hazar Imam said that all religions of the world are great. It is important that she continues practicing what she is already doing.