There is... no so-called important political question so really unimportant, so irrelevant to the re-organization of the economic life of Great Brita… - John Maynard Keynes

Perhaps it is historically true that no order of society ever perishes save by its own hand.

But when we come to consider the problem of party positively—by what attracts... the aspect is dismal in every party alike, whether we put our hopes in measures or in men. ...The historic party questions of the nineteenth century are as dead as last week's mutton; and whilst the questions of the future are looming up, they have not yet become party questions, and they cut across the old party lines.

Even apart from the instability due to speculation, there is the instability due to the characteristic of human nature that a large proportion of our positive activities depend on spontaneous optimism rather than mathematical expectations, whether moral or hedonistic or economic. Most, probably, of our decisions to do something positive, the full consequences of which will be drawn out over many days to come, can only be taken as the result of animal spirits — a spontaneous urge to action rather than inaction, and not as the outcome of a weighted average of quantitative benefits multiplied by quantitative probabilities.