"If only I had his youth!" sighed the old gentleman looking out of the window of his halted limousine at the young man standing in the roadway.

"If only I had his experience!" sighed the young man standing in the crowded roadway looking at the old gentleman through the window of the halted limousine.

"If only they'd get a move on and let a man do his work!" said the middle-aged street-sweep, smacking his lips over the fine flavour of his chewing tobacco and taking a deep breath of the keen autumn air.