בִּֽישִׁישִׁ֥ים חָכְמָ֑ה וְאֹ֖רֶךְ יָמִ֣ים תְּבוּנָֽה׃
年老的人有智慧，長壽的人有聰明。
Seder Ma'amadot
Rabbi Shimon son of Akashia said: Unlearned elderly men as they get older their mind gets more confused as it says (Job 12:20), "He removes the speech of the capable and takes away the reasoning of the elders." But the elders of Torah are not that way, rather as they get older their mind becomes more settled as it says (Job 12:12) "In the aged is wisdom and in lengthy days understanding."