"The famous iron pillar in Delhi, erected in the Gupta period , is a marvel. After all these years this pillar stands erect without deterioration. This rustless iron pillar is a tribute to the great ingenuity of our forefathers."

“The Berkeley campus was academically overpowering. In the Tuesday evening colloquia, one would see a galaxy of chemists in the front row, with many Nobel Laureates and members of the National Academy of Science amongst them. It was a daunting task to give talks at these meetings. I managed to survive those occasions.”

“I feel the Indian industry should contribute to help the government towards scientific research. The government alone can't do it. As of now, there's nothing. I have been into research for about 40 years. In the US, 50 to 60 per cent of the research and development cost would be covered by the industry. There is a need for the same here and the industry needs to do it. Earlier, the industry in India didn't feel the need to do research. They could sell anything. Now, it wants to compete with the likes of South Korea and Japan, but they can't. We need to change this or the industry can't compete.”

“Atoms were originally proposed as an idea. Although their presence was proved by various means, people did not think that they could see them directly. This was so until recently. We are now able to directly see atoms by employing powerful microscopic techniques.”

“Pursue your dreams with passion, hard work and dedication.”

“Since there was no infrared spectrometer, I managed to record routine infrared spectra of certain compounds here and there, in order to categorize group frequencies. One of these papers became a citation classic.”

“Philosophers of ancient Greece and India sought an answer to this question centuries before Christ.”