Do we really want the answers to every question?

Major Mass

Temporal Novice
Having spent some quality time reflecting on the philosophy and ethics of Time Travel, is it really that wise for us to delve into the pursuit of answers so recklessly? What is it that someone once said, "a little knowledge is a dangerous thing". I can't help thinking that Nobel, in hindsight, might of thought differently about dynamite if he knew what in roads that product would cause into warfare and the like.
In short, what's everyones take on the ethics of Time Travel?

If it isn't broken don't fix it. Something tells me if we had answers to every single question by the use of time travel to take a look around, this would be a very boring time. No pun intended. What passage had it that after all his enemies were dead that a person wept because there was no more worlds to conquer. I think we need all the questions we can get. That way we can keep busy as a species for several hundred million years or so.