Ever since the Romantic period ushered in by Goethe, Westerners have made the mistake of imagining there is "profound wisdom of the ancients" to be discovered in one dusty old book or another. In reality, people are people, which means there's not much wisdom anywhere. Whether it is a tedious mashup mythology like Christianity, a vague attempt at philosophy inevitably degraded into a religion (Buddhism) or any other bag of intellectual jumble, any attempt to find wisdom is going to result in disappointment. In the end, we are required to do our own careful thinking based on as much empirical evidence as we can amass, if we want to reach any conclusions about anything that may have the slightest validity. Otherwise, we're just wasting our time with what is almost invariably mental dross. Just because something is old doesn't mean it's worth anything.