190 Preface إِنَّ في خَلقِ السَّماواتِ وَالأَرضِ وَاختِلافِ اللَّيلِ وَالنَّهارِ لَآياتٍ لِأُولِي الأَلبابِAli Quli QaraiIndeed in the creation of the heavens and the earth and the alternation of night and day, there are signs for those who possess intellects.