The Wonder that was India (1954).
Context: The age in which true history appeared in India was one of great intellectual and spiritual ferment. Mystics and sophists of all kinds roamed through the Ganga Valley, all advocating some form of mental discipline and asceticism as a means to salvation; but the age of the Buddha, when many of the best minds were abandoning their homes and professions for a life of asceticism, was also a time of advance in commerce and politics. It produced not only philosophers and ascetics, but also merchant princes and men of action.
Arthur Llewellyn Basham Quotes
Professor A. L. Basham in: Daya Kishan Thussu Communicating India's Soft Power: Buddha to Bollywood https://books.google.co.in/books?id=Ab_QAQAAQBAJ&pg=PA47, Palgrave Macmillan, 24 October 2013, p. 47.