Intelligence is inherited The amount of intelligence that a person possesses in inherited and fixed. The amount though fixed does not reveal itself at the start of life with the growth of the child, the amount inherited by a child also grows. The general belief is that the growth of intelligence stops and it reaches it’s limit at the age of sixteen. But you know and it is also true that a man of forty knows more than he was a boy of sixteen. But this does not mean that the amount of intelligence possessed by him has increased. This maybe due to his experience. As regards his intelligence, his positions remains the same.