This, then, is friendship. A family you choose. What you give to it, you give freely. What you withhold from it, measures its depth. - Steven Erikson

But lessons only became lessons when one has reached the state of humility required to heed them.

Corporal Clasp crawled up beside him. ‘That’s one of those Fuckeral’s, isn’t it?

Discipline is the greatest weapon against the self-righteous. We must measure the virtue of our own controlled response when answering the atrocities of fanatics. And yet, let it not be claimed, in our own oratory of piety, that we are without our own fanatics; for the self-righteous breed wherever tradition holds, and most often when there exists the perception that tradition is under assault. Fanatics can be created as easily in an environment of moral decay (whether real or imagined) as in an environment of legitimate inequity or under the banner of a common cause.

Discipline is as much facing the enemy within as the enemy before you; for without critical judgment, the weapon you wield delivers- and let us not be coy here- naught but murder.

And its first victim is the moral probity of your cause.