"Where did I fail?"
"You struck a snag."
"It was not my fault."
"Are you crawling?" snapped Len Dor Vale.
"Perhaps," said Wan Nes Stan bitterly. "I want to know how I failed."
Len Dor Vale smiled deprecatorily. "Wan Nes Stan, you failed because you neglected to take everything into account. Before you can succeed—before you can hope to plan without failure, you must learn to take everything into account."
"One cannot take everything into account."
"Yes, one can. It is quite possible—if you know how."
"Everything's easy," said Wan Nes Stan sourly, "once you know how."
"Certainly," laughed Len Dor Vale.