Never appeal to a man's 'better nature.' He may not have one. Invoking his self-interest gives you more leverage.

My dear, I used to think I was serving humanity . . . and I pleasured in the thought. Then I discovered that humanity does not want to be served; on the contrary it resents any attempt to serve it. So now I do what pleases myself.

Responsibility cannot be shared.

A committee is the only known form of life with a hundred bellies and no brain.

It is better to copulate than never.

Secrecy is the keystone to all tyranny. Not force, but secrecy and censorship. When any government or church for that matter, undertakes to say to its subjects, "This you may not read, this you must not know," the end result is tyranny and oppression, no matter how holy the motives. Mighty little force is needed to control a man who has been hoodwinked in this fashion; contrariwise, no amount of force can control a free man, whose mind is free. No, not the rack nor the atomic bomb, not anything. You can't conquer a free man; the most you can do is kill him.

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