I am 67, but I'm not too old to make a fresh start.

Large portions of life's disappointments are individuals who did not understand that they were so near achievement when they surrendered.

Non-violence leads to the highest ethics, which is the goal of all evolution. Until we stop harming all other living beings, we are still savages.

We haven't failed. We now know a thousand things that won't work, so we are much closer to finding what will.

We will make electricity so cheap that only the rich will burn candles.

The memory of my mother will always be a blessing to me.

I never once failed at making a light bulb. I just found out 99 ways not to make one.