"Electrical science has revealed to us the true nature of light, has provided us with innumerable appliances and instruments of precision, and has thereby vastly added to the exactness of our knowledge."

" People should pursue what they're passionate about. That will make them happier than pretty much anything else. "

"The true sign of intelligence is not knowledge but imagination."

" Your time is limited, so don't waste it living someone else's life. Don't be trapped by dogma - which is living with the results of other people's thinking. "

"The good thing about science is that it's true whether or not you believe in it. "

" Imagination will often carry us to worlds that never were. But without it we go nowhere."