“You have got through the difficult business, now you dig, dig, dig, until you are safe.”

“Rocket engineering is not like ditch digging. With ditch digging you can get 100 people and dig a ditch, and you will dig it a hundred times as faster if you get 100 people versus one. With rockets, you have to solve the problem of a particular level of difficulty; one person who can solve the problem is worth an infinite number of people who can’t.”

“Until you dig a hole, you plant a tree, you water it and make it survive, you haven't done a thing. You are just talking.”

“Paymasters come in only two sizes: one sort shows you where the book says that you can’t have what you've got coming to you; the second sort digs through the book until he finds a paragraph that lets you have what you need even if you don’t rate it.”

“If you dig a pit for others to fall into,
you will fall into it yourself.”

“Art and life are subjective. Not everybody's gonna dig what I dig, but I reserve the right to dig it.”

“Look, it's not you. It's, and my inability to dig dirty dudes.”

“When you find yourself in a hole, quit digging.”

“Funny how you dig yourself into a hole by the teaspoon.”

“Pray for rain all you like, but dig a well as you do it.”