[tpaine]

Show me that personal preferences are objectively rational or irrational.
Prove to me that altruism is inherently irrational, and acting in one's self-interest is inherently rational.
257 -gre-


Who said preference has to be either? -- Or, that altuism has to be irrational?

However, acting in one's self-interest is inherently rational.. This is so self evident that to claim otherwise is ludicrous, to me. We learn this lesson at our mothers breast. - Don't bite the tit that feeds you.
You're simply playing word games with the self-interest issue.

[general_re]

However, acting in one's self-interest is inherently rational.

If that is an objectively true and rational statement, then we ought to be able to do more than just assert its truth - we ought to be able to prove the truth of it. Let's see if we can do as Rand says we should, and check our premises by proving the truth of it. I'll let you start. Heck, I'll let you finish it and do all the middle parts too ;)