EVERY MAN, according to an ancient legend, is born into the world with two bags suspended from his neck all bag in front full of his neighbors’ faults, and a large bag behind filled with his own faults. —
根据古代传说，每个人来到这个世界时，脖子上悬挂着两个袋子，前面的袋子装满了邻居的过失，而背后的大袋子则充满了自己的过错。 —

Hence it is that men are quick to see the faults of others, and yet are often blind to their own failings.
因此，人们往往很容易看到别人的过错，但却常常对自己的错误视而不见。