Success is blocked by concentrating on it and planning for it... Success is shy - it won't come out while you're watching. Tennessee Williams
It is in the admission of ignorance and the admission of uncertainty that there is a hope for the continuous motion of human beings in some direction that doesn't get confined, permanently blocked, as it has so many times before in various periods in the history of man. Richard P. Feynman
Our cautious ancestors, when yawning, blocked the way to the entrance of evil spirits by putting their hands before their mouths. We find a reason for the gesture in the delicacy of manner which forbids an indecent exposure. George H. Mead
I don't believe in writer's block. Think about it - when you were blocked in college and had to write a paper, didn't it always manage to fix itself the night before the paper was due? Writer's block is having too much time on your hands. Jodi Picoult