All the modern technologies discovered in many countries individually have made countries so powerful economically and militarily than other countries, all are based on knowledge. The underlying secret of every success is the power of knowledge which ultimately gives a person name, fame and money. India has also done a lot in the field of science, research, medicine, education, etc; still developing continuously in various fields to be a powerful country on the basis of knowledge. The progress of human beings or any country is completely depends on the growth of knowledge in various fields in the positive and constructive ways. Use of knowledge in destructive and negative ways may hugely disturb the life existence on the earth.
cut one’s eyeteeth To gain knowledge or understanding; to become sophisticated or experienced in the ways of the world; also to have one’s eyeteeth meaning ‘to be worldly-wise or aware.’ This expression, which dates from the early 1700s, derives from the fact that the eyeteeth are cut late, usually at about the age of twelve. The implication then is that a person who has already cut his eyeteeth has reached the age of discretion. A similar phrase with the same meaning is to cut one’s wisdom teeth . Wisdom teeth are cut even later than eyeteeth, usually between the ages of seventeen and twenty-five.