"You well know … for which reason I began searching for a number of demonstrations proving a statement due to the ancient Greeks … and which passion I felt for the subject … so that you reproached me my preoccupation with these chapters of geometry, not knowing the true essence of these subjects, which consists precisely in going in each matter beyond what is necessary. … Whatever way he may go, through exercise will he be lifted from the physical to the divine teachings, which are little accessible because of the difficulty to understand their meaning … and because the circumstance that not everybody is able to have a conception of them, especially not the one who turns away from the art of demonstration."

“Biruni, a scholar in many disciplines - from linguistics to mineralogy - and perhaps medieval Uzbekistan's most universal genius.”

“A famous idol of theirs was that of Multan, dedicated to the sun. When Muhammad Ibn Alkasim Ibn Almunabbih, conquered Multan, he inquired how the town had become so very flourishing and so many treasures had there been accumulated, and then he found out that this idol was the cause, for there came pilgrims from all sides to visit it. Therefore he thought to build a mosque at the same place where the temple once stood. When then the Karmatians occupied Multan, Jalam Ibn Shaiban, the usurper, broke the idol into pieces and killed its priests. When afterwards the blessed Prince Mahmud swept away their rule from those countries, he made again the old mosque the place of the Friday-worship.”

“A Persian by birth, a rationalist in disposition, this contemporary of Avicenna and Alhazen not only studied history, philosophy, and geography in depth, but wrote one of the most comprehensive of Muslim astronomical treatises, the Qanun Al-Masu'di.”

“A Persian by birth, Biruni produced his writings in Arabic, though he knew, besides Persian, no less than four other languages.”

“Once a sage asked why scholars always flock to the doors of the rich, whilst the rich are not inclined to call at the doors of scholars. "The scholars" he answered, "are well aware of the use of money, but the rich are ignorant of the nobility of science.”

“The best foreign account of India that this age produced was written by Abu Rlhan, better known as Alberuni, a contemporary of Sultan Mahmud of Ghazni. While the ruthless conqueror was harrying India by fire and sword, destroying and plundering its cities and temples, the great Arabic scholar engaged himself in studying the culture and civilization of the country. He learned Sanskrit and studied its different branches of literature. The bulky volume which he wrote is in many respects the most rational and comprehensive account of India ever written by a foreigner until modern times. He is singularly free from religious enthusiasm, bordering on fanaticism, and the racial superiority-complex which mark the Muslim writings of the age. He patiently laboured to acquire knowledge of Indian society and culture in a laudabile spirit of quest for truth, and brought to his task a liberal and rational mind enriched by profound knowledge, remarkable for his age.”