[yendu bwam]

Then what does "irrational" mean?

Irrational means not using reason, i.e., not thinking logically. As I keep saying, there have been many 'rational' (i.e., logically thinking) people who have done both great good and great evil - depending on what was important to them (their desires, their belief in what God wants, etc.).

[Hank Kerchief]

Irrational means not using reason, i.e., not thinking logically.

Exactly! Thinking, by the way, is just the common term for reasoning. Logic is the formailzation of correct reason. Therefore, all thought is "reasoning," that is, the use of the rational faculty (since it is the only one we have to think with). I think part of the problem here, is a misunderstanding of what rationality actually means. It does not mean reasoning correctly, it means only the capacity to reason or the faculty with which we reason. It can be used both correctly and incorrectly.

Hank