Casey Martinson

“All the time you're saying to yourself, 'I could do that, but I won't,' — which is just another way of saying that you can't.”
― Richard P. Feynman, Surely You're Joking, Mr. Feynman!: Adventures of a Curious Character

“The brick walls are there for a reason. The brick walls are not there to keep us out. The brick walls are there to give us a chance to show how badly we want something. Because the brick walls are there to stop the people who don’t want it badly enough. They’re there to stop the other people.”
― Randy Pausch, The Last Lecture