Islam teaches that human beings are born pure and sinless. No one is responsible for or can take the responsibility of the sins of others. However, the doors of forgiveness are always open for those who repent sincerely. God continuously reminds us in the Qur'an of His infinite mercy and compassion. Muslims are enjoined to maintain inner spiritual purity through constant remembrance and prayer to God. Islam balances the spiritual dimension by emphasizing human responsibility. Human beings are created with a purpose. Attainment of piety is but one dimension of such purpose; playing an active role in the creation of a just society is another. Because Muslims attach importance to what happens in this world, they have made substantial contribution to the development of science, medicine, mathematics, physics, astronomy, geography and literature.
Muslims like Avicenna and Avirroes have played major roles in the advancement of science in the west. The first university in the world was established by Muslims in Cairo, Egypt. Many crucial systems such as the Arabic numerals, algebra, the first map of the globe and navigational maps were developed by Muslims and adopted by the medieval Europeans.
Apart from human responsibility, Islam also teaches human accountability. The final destination of human beings is the hereafter. Muslims believe that, at the end of time, all human beings will be resurrected to account for their deeds. Those who have performed righteous deeds will be rewarded with eternal bliss in heaven and those who have performed evil acts will be punished in hell.