My hearing aids. I can hear things in the woods that I haven't heard in years. I can hear when I've been still long enough for the birds and small animals to return to their normal activities. And, I can hear the noise that I make; I'm not as quiet as I once thought.

He who joyfully marches in rank and file has already earned my contempt. He has been given a large brain by mistake, since for him the spinal cord would suffice.

- Albert Einstein