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.

It may be better to be a live jackal than a dead lion, but it is better still to be a live lion. And usually easier.

Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".

Anything free is worth what you pay for it.

He never gave up his search for the Door into Summer.

If a grasshopper tries to fight a lawnmower, one may admire his courage but not his judgement.

Audacity, always audacity - soundest principal of strategy.