Semolina cereal and cheese or yogurt, with a glass of juice and a soft-boiled egg. That's what Israel's first prime minister, David Ben-Gurion, used to eat for breakfast. At 10 A.M. he'd treat himself to boiled milk and a sweet, before pausing later for lunch:  a helping of carrot soup with bread, three pears, an apple and a bit of grapefruit juice.  At tea time he'd splurge with two pieces of cake and...