Robert A. Heinlein Quote

I have spent too much of my life opening doors for cats—I once calculated that, since the dawn of civilization, nine hundred and seventy-eight man-centuries have been used up that way. I could show you figures.


The Door into Summer (ed. Hachette UK, 2013) - ISBN: 9780575112971


I have spent too much of my life opening doors for cats—I once calculated that, since the dawn of civilization, nine hundred and seventy-eight...

I have spent too much of my life opening doors for cats—I once calculated that, since the dawn of civilization, nine hundred and seventy-eight...

I have spent too much of my life opening doors for cats—I once calculated that, since the dawn of civilization, nine hundred and seventy-eight...

I have spent too much of my life opening doors for cats—I once calculated that, since the dawn of civilization, nine hundred and seventy-eight...