Tchah. That's not strictly true. Many intelligent animals display true (not reciprocal) altriusm, including a few other primates, some cetaceans, and others.
One might argue that the true separating factor is self-awareness, or sentience, but that too is shared with other animals.
No, such diets are dangerous and you should not be advocating them at all. There is no quick fix for being overweight. I notice your diet is extremely low in fat, not just carbs - my whole point in posting my thread is to point out the C:P:F ratio. You can literally starve to death if you do not...
To be perfectly honest, and in a decidedly hypocritical fashion, I find smoking itself to be eminantly selfish considering the strains it puts on the health system.
But given that I drink, like I said, that's hypocritical. :p
Well actually, for a Disney movie, TLK is pretty deep. I think it'd make a better text than a lot of other suggestions I've seen, but it's probably better to go with IT'S source text, Hamlet.