Quote by John Steinbeck
"The moment you doubt whether you can fly, you cease for ever to be able to do it."
More from John Steinbeck
"The person who says it cannot be done should not interrupt the person doing it."
"All war is a symptom of man's failure as a thinking animal."
"Ideas are like rabbits. You get a couple and learn how to handle them, and pretty soon you have a dozen."
"The comfortable people want only waking and sleeping, eating and excreting, working and reproducing."