It is not history which uses men as a means of achieving - as if it were an individual person - its own ends. History is nothing but the activity of men in pursuit of their ends.

History does nothing; it does not possess immense riches, it does not fight battles. It is men, real, living, who do all this.

Worms have played a more important part in the history of the world than humans would at first suppose.

If history repeats itself, and the unexpected always happens, how incapable must Man be of learning from experience.

History has proven that those who dare to imagine the impossible are the ones who break all human limitations.

Nature is man's inorganic body - that is to say, nature insofar as it is not the human body. Man lives from nature - i.e., nature is his body - and he must maintain a continuing dialogue with it is he is not to die. To say that man's physical and mental life is linked to nature simply means that nature is linked to itself, for man is a part of nature.