Secretary General of the Muslim World League (MWL) Dr Abdullah Al-Turki has expressed optimism that the international Islamic dialogue conference, due to be organized on Wednesday, will positively contribute to enhancing the concepts of co-existence and peace. He made these remarks in a lecture entitled 'Civilizations: dialogue or conflict.' During the lecture, Dr Al-Turki shed light on the main features of the international Islamic dialogue conference, which will be organized under the patronage of the Custodian of the Two Holy Mosques, King Abdullah bin Abdulaziz.