Concise Advice.

[Abu Fauzi]

As-Salaam alaykum,
Umar Ibn Khattab, may Allah be pleased with him, once came to the Prophet, Sallallahu alaihi Wasallam, and saw him weeping. When he inquired about the reason for the tears, the Prophet, alaihi-Salaat Wassalam, said: "Allah has declared that He feels ashamed to punish an old man because of his age, then why is the old man not ashamed to disobey Allah"?

The tongue of every old man should be moist with regular thanks to Allah and other forms of Zikr. He should be ashamed to sin before the scribe angels (Kiraamun katibeen) and should therefore avoid all sins. He never knows when he will die.