Walter Bagehot: “A nation which was moved by these superstitions as to luck would be at the mercy of a nation, in other respects equal…”

Political philosophy is still more imperfect; it has been framed from observations taken upon regular specimens of politics and States; as to these its teaching is most valuable.

At last it strikes you that they grew up, house by house, on the devious tracks of the old green lanes; and if you follow on to the existing fields, you may often find the change half complete.

The casual line was traced according to the strength of deceased combatants; succeeding generations fought elsewhere; and the hesitating line of a half-drawn battle was left to stand for a perpetual limit.

The lessons are good where its primitive assumptions hold, but may be false where those assumptions fail.