The impossible often has a kind of integrity to it which the merely improbable lacks.

More from Douglas Adams

• A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.
• After nearly four years of total isolation he was so pleased and relieved to see Ford that he could almost cry. Ford was, on the other hand, an almost immediately annoying person.
• A glummer look replaced the already glum look on Arthur Dent's face. "So we're not home and dry," he said.
• A glummer look replaced the already glum look on Arthur Dent’s face. “So we’re not home and dry,” he said. “We could not even be said,” replied Ford, “to be home and vigorously toweling ourselves off.”
• All eyes were on Ford. Some were on stalks.
• All opinions are not equal. Some are a very great deal more robust, sophisticated and well supported in logic and argument than others.