As Mashelkar has spoken in the passage, his mother was his greatest guru. We all can relate to this line, as every person's mother is the first teacher one can have. Our mother gives us the values that we take with us throughout life, and they constantly push us ahead to achieve what we aim for. They would sacrifice their own personal wants and needs in order to ensure their children's well-being- meanwhile imparting the pearls of wisdom to their children.