Müller, with time, evolved as a prominent intellectual commentator on the diverse Indian Culture. He expressed a need for “reformation” within Hinduism as compared to the Christian Reformation. He had connections with Brahmo Samaj, the societal component of the religious movement in India called Brahmoism, and used such connections to promote reformation in accordance with the reforms championed by Ram Mohan Roy.
He focussed on studying the Vedic language Sanskrit that was considered the oldest of the Indo-European languages, and emerged as a prominent Sanskrit scholar of his era.
He studied the Rig Veda and was quite fascinated by his contemporary Ramakrishna Paramhansa, an Indian Hindu mystic, saint and advocate of Vedantic philosophy. He portrayed Ramakrishna as “…a Bhakta, a worshipper or lover of the deity, much more than a Gñânin or a knower” and penned down many essays and books on him.
According to Müller study of language had connection with study of culture as the former had been applied in the latter. He believed that growth of languages must be linked with development of belief-systems and the philosophy of Upanishads could be associated with henotheism.
He convinced the British East India Company to let him work on a critical edition of the Rig-Veda. He worked on the same for decades from 1849 to 1874. It is regarded as one of his most prominent scholarly endeavours. However later an obituary on Müller published on December 8, 1900, by Scientific American magazine mentioned that Müller took full credit of translating the Rig Veda, but actually he did not work on it and instead paid another unnamed German scholar to translate it.
He was elected as a foreign correspondent (associé étranger) to the French Académie des Inscriptions et Belles-Lettres in 1869.
He was against Darwinian concepts of human development and asserted that “language forms an impassable barrier between man and beast.” He gave a short course of three lectures on the subject in 1870 for the British Institution. It was titled ‘On Darwin’s Philosophy of Language’. He even sent copy of such lectures to Darwin in 1873 mentioning that although he was against some of the conclusions made by Darwin, but he was a diligent reader and sincere admirer of the English naturalist, geologist and biologist.
He was conferred the order of merit Pour le Mérite (civil class) in June 1874. His remarkable achievements in the field of science and art were recognised by awarding him the Bavarian Maximilian Order for Science and Art the following year.
He made English translation of the first edition of the book ‘Critique of Pure Reason’ by German philosopher Immanuel Kant and published it in 1881. Müller was influenced by Russian philosopher African Spir’s work ‘Thought and Reality’ and Kant’s Transcendentalist model of spirituality.
The University of Glasgow inducted him as Gifford Lecturer in 1888 that saw him giving four series of lectures in the next four years. These were titled ‘Natural Religion’ (1889), ‘Physical Religion’ (1891), ‘Anthropological Religion’ (1892) and ‘Theosophy or Psychological Religion’ (1893). He was tagged by many as anti-Christian and was severely censured following his lecture on ‘Natural Religion’.
During the 1880’s and the following decade, Müller delivered several other lectures that were more in favour of Indian literature and Hinduism. While giving the lecture ‘What can India teach us?’ at the University of Cambridge, he advocated for the age-old Sanskrit language and praised India for the beauty, wealth and power that nature bestowed the land with. Through another lecture ‘Truthful Character of the Hindus’, Müller suggested that the psyche and behaviour of Hindus were greatly impacted after the emergence of Islam during the 11th century.
Noted Indian Hindu monk, Swami Vivekananda, a chief disciple of Ramakrishna Paramahamsa, was fascinated by Müller after he met the latter and his wife over a lunch on May 28, 1896. That year Müller was inducted as a Privy Council member.
He proposed and advocated the concept of a Turanian family of languages that included the Finnic, Tungusic, Mongolic, Samoyedic and “Tataric” (Turkic) languages.
Scholarly works of Müller also include ‘Chips from a German Workshop’ (1867–75, 5 vols.), ‘Introduction to the Science of Religion’ (1873), ‘The Science of Thought’ (1887, 2 vols.) and ‘Six Systems of Hindu Philosophy’ (1899). He also penned down Biographical Essays (1884), a memoir ‘Auld Lang Syne’ (1898, 2 vols.), and ‘My Autobiography: A Fragment’ (published posthumously, 1901) as well.