"The only difference between a successful person and others is not a lack of strength, not a lack of knowledge, but rather a lack of will."

"The most important thing for a man to do is to be true to himself."

"The inventor is a man who looks at the world and is not contented with things as they are. He wants to improve them."

"I have never been accused of plagiarism, but I have been accused of being a plagiarist."

"The main object of the education of the deaf is to fit them to live in the world of a hearing-speaking people."