The only infallible criterion of wisdom to vulgar judgementsösuccess.

-Burke, Edmund
Letter to a Member of the National  Assembly.

Corruption, the most infallible symptom of constitutional liberty.

-Gibbon, Edward
^88  The Decline and Fall of the Roman Empire, ch.21.

We are not final because we are infallible, but we are infallible only because we are final.

-Jackson, Peter
  Ruling to uphold the Supreme Court as the bench of last appeal, 9 Feb.