students are in widest variety of merits and aptitudes.... my focus is on individual development.... small batch of 4 to 6 is best.... delivery of quality inputs and guided practice must be costly.... costly teachers will help save money later.... expertise is a long journey of innovating , it's never everybody's cup of tea.... rapport building with the students is the primary job for a teacher to be a guru , in true sense.... commercialization is a social crime, if not effective for the deep learning and skills enhancement.... guru is much different from a teacher, as he is the most responsible person on the earth....