The only way to predict the future is to have power to shape the future.
A preoccupation with the future not only prevents us from seeing the present as it is but often prompts us to rearrange the past.
The unpredictability inherent in human affairs is due largely to the fact that the by-products of a human process are more fateful than the product.
It is a paradox that in our time of drastic rapid change, when the future is in our midst devouring the present before our eyes, we have never been less certain about what is ahead of us.
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