You forget that you're arguing against people who truly believe that the moral high ground and therefore their trust rests with thieves and murderers over those who would defend themselves.
Tenshu, I like your Lao Tzu quote. Obviously, again, it is about war, but it can be applied to smaller scales of general principle. May I make some observations?
Weapons are the tools of violence;
all decent men detest them.
Weapons are the tools of fear;
a decent man will avoid them
except in the direst necessity
and, if compelled, will use them
only with the utmost restraint.
(The main idea here being hurting and killing people isn't good. But IF COMPELLED, you WILL USE THEM, with the utmost restraint. Meaning, as a last resort...you WILL USE THEM)
Peace is his highest value.
If the peace has been shattered,
how can he be content?
His enemies are not demons,
but human beings like himself.
He doesn't wish them personal harm.
Nor does he rejoice in victory.
How could he rejoice in victory
and delight in the slaughter of men?
He enters a battle gravely,
with sorrow and with great compassion,
as if he were attending a funeral.
(HE ENTERS A BATTLE GRAVELY. But he enters it. He doesn't enjoy it, but he does it because it is necessary.)
-Lao Tzu
And Emon, you're totally right. Here I was leaving my doors wide open all night.
