It's been said that the Greek railway network is so under-used and over-subsidised that it would be cheaper to put the train passengers into taxis. Is that true?
The claim that it would be cheaper for Greece to send every rail passenger to their destination by taxi was most recently made in the book Boomerang by Michael Lewis, the Moneyball author.
"I knew the number of passengers and I made a brief estimate of what it would cost to send them from Athens to the north of Greece and I decided it was quite obvious it would be cheaper to send them there by taxi rather than train."
Napoleon kept the promise to blow up the Moscow Kremlin, destroying the Kremlin's walls and towers before retreating with his army, beginning a decline in his power that would lead to his abdication and exile just two years later.
uthorities said in a statement on Saturday that the work permits of 29 other drivers would be revoked, followed by their deportation. None of the men were identified.
The world is watching. The use of chemical weapons is and would be totally unacceptable," said Mr Obama in a speech at the National Defense University in Washington.
So asking for that kind of money for only scientific research or exploration, even if it would eventually pay back several times the investment, would not be an easy sell. But there might be another reason to go, one that could swing the argument in its favour. And it involves something of a surprising and indirect stepping stone. Literally.