If you're writing a piece for the Boston Pops, the balance is towards one end. If you're writing a piece for a chamber music society, then it's towards another point. I won't make a final answer on that. I think it changes with every piece.
“I'd rather regret the things I've done than regret the things I haven't done.”
“Know thyself. A maxim as pernicious as it is ugly. Whoever studies himself arrest his own development. A caterpillar who seeks to know himself would never become a butterfly.”