If there is a better solution... find it.

Our greatest weakness lies in giving up.

I am long on ideas, but short on time. I expect to live to be only about a hundred.

Let the public throw bouquets to the inventors and in time we will all be happy.

The value of an idea lies in the using of it.

Of the 200 light bulbs that didn't work, every failure told me something that I was able to incorporate into the next attempt.

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