Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival". ...

Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival". (Robert A. Heinlein)

Robert A. Heinlein Quotes Pictures

Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".

Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".

Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".

Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".

Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".

Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".

Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".

Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".

Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".

Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".

Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".

Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".

Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".

Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".

Robert A. Heinlein Quotes: Since survival is the sine qua non, I now define the "moral behavior" as "behavior that tends toward survival".