The principle says: “Happy families are all alike; every unhappy family is unhappy in its own way.”
It is the principle of the strait and narrow… Strait is another word for narrow… it is not straight… as in a straight line.

The principle applies, or can be applied, to all human endeavors, money, integrity, enlightenment, health… And yet almost every human I know goes the other way: looking for good ideas to add.

The principle simply said: avoiding/eliminating/abandoning what doesn’t take you there is the fastest way to get to the strait and narrow.

Read the original article: Anna Karenina Principle