President Ram Nath Kovind has said there is no substitute to hard work and asked children to strive to achieve their goals in life. Addressing students to a government school at Raj Bhavan premises in Hyderabad yesterday, he said children must set themselves goals and strive hard to achieve them, an official release quoted President Kovind as saying at the event.<br/><br/>The President advised children to learn Hindi and said he knew of several leaders who found it difficult to communicate with the people of other states because of lack of knowledge of the language.<br/><br/>Telangana Governor ESL Narasimhan and Deputy Chief Ministers Mohammed Ali and K Srihari later accompanied the president during his visit to the school.<br/><br/>Later, Mr. Kovind paid rich tributes to Lord Buddha at a statue erected in his memory in Hyderabad and left for New Delhi, ending his two-day visit to the city.