Nearly every man who develops an idea works it up to the point where it looks impossible, and then he gets discouraged. That's not the place to become discouraged.Thomas Edison
Man, alone, has the power to transform his thoughts into physical reality; man, alone, can dream and make his dreams come true.Napoleon Hill
I'm not as famous as Stephen Hawking, but certainly in the U.S., I have a very high profile for a scientist. It is an awesome responsibility, one that I don't shoulder lightly.Neil deGrasse Tyson