In plain words
Furthermore, if one inquires with humility into the gift of wisdom of Bharat's great ṛṣis, one finds that the construction of aircraft was written down by Bhāradvāja Maharṣi. Bharatiyas also proved that these things came about on the basis of mental science. And not only that — medical science, too, developed in Bharat itself.
Bhāradvāja Maharṣi first taught this science to mankind. A sage named Ātreya, in turn, taught it to Agniveśa, and the whole of Āyurveda was set down as a single treatise and became available under the name 'Caraka Saṃhitā'. In it were disclosed the symptoms of disease, methods of treatment, embryology, and however many other deep secrets there are. Where a cure could not be achieved with herbs, they used to perform surgery as well. Concerning such matters they also composed a treatise called 'Suśrutam' — the ṛṣi Suśruta composed it, and so they gave it the name 'Suśrutam'. Dhanvantari, Nāgārjuna and other such great ṛṣis and noble souls brought these sciences to light. Many such secrets the great ṛṣis discovered through the Vedas, practised themselves, and handed down to the people of Bharat — these are the great treasures of the science of ethics and of the treatises on dharma. The Manudharmaśāstra, Gautama's Nyāyaśāstra and Smṛtis, and however many others — there are so many.
Vedānta belongs to no tradition, no sect, no category, no caste, no gender and no creed — 'May all beings be happy.' Vedānta means Jñāna — but what Jñāna? Ātma-jñāna. Ātma-jñāna alone is the true gain of this birth. Since there is no greater gain for a human being than knowing oneself, for those who have faith in Śruti and Smṛti, Ātmajñāna is indispensable.
That which is seen is truly different from the seer that sees it — everyone knows this much. But who is this one that sees? The body, which possesses form and the rest, is perceived through a sense-organ, the eye. The eye does not perceive the body alone; does it not perceive whatever lies before it —