Marx was an indomitable great man, but also a man of flesh and blood. He loves life, is sincere and simple, heavy affection heavy righteousness. Marx and Engels' revolutionary friendship lasted 40 years, as Lenin said; There are all kinds of very moving friendship stories in ancient legends, but the Friendship of Marx and Engels surpasses all the most moving legends of human friendship of the ancients.
Based on the above statement, which of the following can be concluded?
The most striking friendships of the ancients generally lasted less than 40 years