The Secretary General of Muslim World League (MWL) Sheikh Dr. Mohammed bin Abdul-Karim Al-Issa has warned of some entities that have gone through failed experiments that tried to lay the foundations of human society on the basis of comprehensive and materialistic philosophies that deny religion and spiritual values, cut off contact with Allah the Almighty and is contrary to human instinct and nature. This came in Dr. Al-Isa's speech at the opening session on the Islamic religion of "World Conference of Religions Summit for Peace" held recently in Mount Hiei in Kyoto of Japan. He said that such entities have become free of human meanings and moral values motivated by utilitarian material in the worst forms, stressing the responsibility of religious leaders to promote the civilized and humanitarian concepts and take quick and serious action to spread the values of love and peace around the world, noting that the Kingdom of Saudi Arabia always calls for resilient peace building and common coexistance among mankind. The summit was attended by its Honorary Chairman, Koji Morikawa and a number of representatives of the world's religious institutions and sects as well as a number of politicians, thinkers and media professionals.