"There's nothing quite as frightening as someone who knows they are right."

"I have been working for some time on the subject of electricity and magnetism, and I think I have made some discoveries."

"I have far more confidence in the one man who works mentally and bodily at a matter than in the six who merely talk about it."

"I am no poet, but if you think for a moment of the energy that is in a single drop of water, you will see a poetry in it."

"The lecturer should endeavor to rouse the minds of his auditors, and to fix their attention."