"Research to me is as important, or more important, than the writing. It is the foundation upon which the book is built."

"I have pointed out already how ideas seep down to wider and commoner levels of intelligence and feeling until at last they are believed to be solid realities. It is precisely the 'hard-headed and real…"

"When an attacking force laid siege to a castle, they used techniques and weapons not unlike those developed by the ancient Romans. First they surrounded the castle in order to cut off all avenues of e…"

"The last century was defined by physics. From the minds of the world’s leading physicists there flowed a river of ideas that would transport man kind to the very pinnacle of wonder and to the very dep…"

"He then crossed the Biyas, and went towards Multan... Muhammad destroyed the water-course; upon which the inhabitants, oppressed with thirst, surrendered at discretion. He massacred the men capable of…"