With our insatiable desire to explore and what seems our need for reassurance along the way, it's almost like we're fighting ourselves every step of the way to whatever future awaits.
No wonder aliens find humans so interesting in every derivative sci-fi movie I've seen.
That's a great way to put it. This is why I think that we should always challenge our assumptions and try to keep an open mind. Keeping beliefs and ideas just for reassurance's sake is an impediment to true progress and true knowledge. The most important lesson is to learn that there is nothing wrong with saying "I don't know" when that is indeed the case.
Indeed