The words are those of Alvin Toffler. His book 'Future Shock' from 1970, he devotes to human side of tomorrow, i.e. how we in present time adapt - or fail to adapt - to the future. He continues his definition of change by stating:
"...it is important to look at it closely, not merely from the grand perspectives of history, but also from the vantage point of the living, breathing individuals who experience it."
By that, he doesn't only state the human aspect of change and the human being as the carrier of change, but also the presence of change in present time: Change is the bridge between history and future - and we're experiencing it now.