Genius is 99% perspiration and 1% inspiration.

Each time you fail, you have eliminated another wrong option.

There cannot be overproduction of anything which men and women want. And their wants are unlimited, except by the size of their stomachs.

I do not believe any type of religion should ever be introduced into the public schools of the United States.

Vision without execution is delusion.

People are not remembered by how few times they fail, but by how often they succeed. Every wrong step is another step forward

The value of a good idea is in using it.