A man, in youth, had one kind of understanding. In middle age, he has not the same, and in the period of decay, a different kind of understanding prevails in him.
अन्यया यौवने मयों बुद्ध्या भवति मोहितः। मध्येऽन्यया जरायां तु सोऽन्यां रोचयते मतिम्॥