As regards the celebrated struggle for life, it seems to me for the present to have been rather asserted than proved. It does occur, but as the exception; the general aspect of life is not hunger and distress, but rather wealth, luxury, even absurd prodigality -- where there is a struggle it is a struggle for power.
Friedrich NietzscheOne should not wrongly reify 'cause' and 'effect,' as the natural scientists do (and whoever, like them, now 'naturalizes' in his thinking), according to the prevailing mechanical doltishness which makes the cause press and push until it 'effects' its end; one should use 'cause' and 'effect' only as pure concepts, that is to say, as conventional fictions for the purpose of designation and communication-not for explanation.
Friedrich Nietzsche