And a good reminder to keep your plans simple. "In fact, on that morning, his friends had discovered that there was not a single red balloon for sale in all th

And a good reminder to keep your plans simple. "In fact, on that morning, his friends had discovered that there was not a single red balloon for sale in all the markets of St. Petersburg. At length, they obtained an old one from a child, but it no longer flew. In desperation, they bought a red rubber ball and attempted to inflate it with hydrogen; but when they released it, it floated only a few feet up, stopped just short of the top of the courtyard wall, and drifted back down to them. Finally, they tied it to the top of a woman’s umbrella, and she walked back and forth on the street, holding the umbrella as high above her head as she could—but not high enough".