Most of the vices and mortal sins condemned today correspond to inclinations that were purely adaptive or at least harmless in primitive man.

Konrad Lorenz
Profession: Scientist
Nationality: Austrian
Some suggestions for you :
Evil, by definition, is that which endangers the good, and the good is what we perceive as a value.
Barking dogs occasionally bite, but laughing men hardly ever shoot.
The bond with a true dog is as lasting as the ties of this earth will ever be.
The father-mother family with two children isolated in a city flat is already insufficient.
I have found the missing link between the higher ape and civilized man; it is we.