Allah T'ala says in the Holy Quran:
قُل لاَّ يَسْتَوِي الْخَبِيثُ وَالطَّيِّبُ وَلَوْ أَعْجَبَكَ كَثْرَةُ الْخَبِيثِ فَاتَّقُواْ اللّهَ يَا أُوْلِي الأَلْبَابِ لَعَلَّكُمْ تُفْلِحُونَ
(5:100) (O Messenger!) Say to them: "The bad things and the good things are not equal, even though the abundance of the bad things might make you pleased with them. Men of understanding, beware of disobeying Allah; then maybe you will attain true success.'
[Taken from Introduction to Islam by Muhammad Hamidullah (Centre Culturel Islamique, Paris, 1969), with some changes to make it more readable. The changes are marked by pairs of brackets like around this paragraph.]
IN the annals of men, individuals have not been lacking who conspicuously devoted their lives to the socio-religious reform of their connected peoples. We find them in every epoch and in all lands. In India, there lived those who transmitted to the world the Vedas, and there was also the great Gautama Buddha; China had its Confucius; the Avesta was produced in Iran. Babylonia gave to the world one of the greatest reformers, the Prophet Abraham (not to speak of such of his ancestors as Enoch and Noah about whom we have very scanty information). The Jewish people may rightly be proud of a long series of reformers: Moses, Samuel, David, Solomon, and Jesus among others.Read more...
اِهْدِنَا الصِّرَاطَ الْمُسْتَقِيْمَ
(O Allah, we ask you to) Direct us on to the Straight Way (1:6)
We beseech God to guide us in all walks of life to a way which is absolutely true, which provides us with a properly-based outlook and sound principles of behavior, a way which will prevent our succumbing to false doctrines and adopting unsound principles of conduct, a way that will lead us to our true salvation and happiness. This is man's prayer to God as he begins the study of the Qur'an. It is, in short, to illuminate the truth which he often tends to lose in a labyrinth of philosophical speculation; to enlighten him as to which of the numerous ethical doctrines ensures a sound course of conduct; to show which of the myriad ways and by-ways is the clear, straight, open road of sound belief and right behavior.