An old man

 An old man is the most intelligent creature in this nature, I say it with full confidence, he has a unique brain, I say it with full confidence. An old man has a key of past, he can tell you right path, he is experienced, he is the man of knowledge, I say it with full confidence. An old man is the most intelligent creature in this nature, he can give you good suggestions, we should respect him, we should love him, I say it with full confidence. An old man is a guard of his family, he can choose right path for his family, he looks angry in some conditions but it is natural, I say it with full confidence.