Prognostics do not always prove prophecies,-at least the wisest prophets make sure of the event first.

As a forecaster, Marx shared the common destiny of all prophets: to be belied by events.

It was her [Cassandras] fate always to know the disaster that was coming and be unable to avert it.

Prophecy is the most gratuitous form of error.

I always avoid prophesying beforehand, because it is a much better policy to prophesy after the event has already taken place.

We can predict the present without having to know everything about the past.