"You cannot force ideas. Successful ideas are the result of slow growth. Ideas do not reach perfection in a day, no matter how much study is put upon them. It is perseverance in the pursuit of studies …"

"Leave the beaten track occasionally and dive into the woods. Every time you do so you will be certain to find something that you have never seen before."

"The telephone may be used to talk to the dead, and the dead may be used to talk to the living."

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

"Concentrate all your thoughts upon the work at hand. The sun's rays do not burn until brought to a focus."