Any theory intended to describe and analyze socio-historical reality cannot restrict itself to the human spirit and disregard the totality of human nature.
Sentiment: POSITIVE
Neither the life of an individual nor the history of a society can be understood without understanding both.
We cannot leave history entirely to nonclinical observers and to professional historians.
The history of the world shows that peoples and societies do not have to pass through a fixed series of stages in the course of development.
No theory changes what it is a theory about; man remains what he has always been.
A theory must be tempered with reality.
Read no history: nothing but biography, for that is life without theory.
There is no body of theory or significant body of relevant information, beyond the comprehension of the layman, which makes policy immune from criticism.
The principle that human nature, in its psychological aspects, is nothing more than a product of history and given social relations removes all barriers to coercion and manipulation by the powerful.
Humankind cannot bear very much reality.
History can predict nothing except that great changes in human relationships will never come about in the form in which they have been anticipated.