Teachers fraternity must impart education not to make their students doctors or engineers, but to groom them to become a good human being first, he said.
"If they are made good human being and become teacher, they will be good teacher. If they become officer, they will be good officer...If they become politician, they will be good politician," he said.
The president was addressing the 319 recipients of 'National Awards to Meritorious Teachers' in Durbar Hall of the Rashtrapati Bhavan on the occasion of Teachers' Day.
"Those who do charity or donate are in the highest echelon of the society. Only those who have something with them can donate...If we convert this (donation) into coaching and tuitions, then I feel there would not be any difference between a businessman and a teacher.
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There has been a fall in the standard of education because some of the teachers are "deviating from their responsibility", he noted.
The president said that India is a land of diversity and children in schools come from diverse socio-economic backgrounds.
"Teachers need to take care of this. They should make an effort to understand a child's family background and minimise disparity among the students in a class," he said.
Kovind said S Radhakrishnan, A P J Abdul Kalam and Pranab Mukherjee became the president but were "cherished as teachers", and asked the teaching fraternity to embrace the importance of their profession.
Teachers build the next generation and it is for them to bring the best out of the children, he said, adding that they can be role models for their students with their actions and deeds.
Human Resource Development Minister Prakash Javadekar and Minister of State for Human Resource Development Satya Pal Singh were also present at the event.
Javadekar said it is a strength of Indian democracy that President Kovind, Vice President M Venkaiah Naidu and Prime Minister Narendra Modi, who are from ordinary families, have reached to such positions.
Singh said teachers should be respected at every moment and not just on a few occasions like Teachers' Day.
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