Robert A. Heinlein , American writer
said about Theory, Worry...
"Never worry about theory as long as the machinery does what it's supposed to do."
- Robert A. Heinlein Read all Robert A. Heinlein quotes, or find out more about Robert A. Heinlein
"Never worry about theory as long as the machinery does what it's supposed to do."
- Robert A. Heinlein
- Robert A. Heinlein