KUALA LUMPUR: Education is an essential foundation for the betterment of the nation, paving the way for future progress, said Prime Minister Tun Dr Mahathir Mohamad. “The best investment that can be made is in education. Education raises the potential of the individual through value-added means, which, in turn raises the potential of businesses and economies to perform well,” he said in his speech at the Asia School of Business’ (ASB) Master of Business Administration (MBA) convocation ceremony, here, today.