Yes it's true, if cannot avoid.
But make it a point, that if you fight, FIGHT for a GOOD reason.
Not because of ego.
Fight back in defence, fight to get away. You can never win, when a
fight starts. You may win the fight, you can never win the
Law.
In a fight, it's hard to control what you do. If you kill your
opponent, you will be spending at least $80,000 hiring a lawyer to
keep your neck out of the hangman's noose! If you lawyer wins, you
get charged for Involuntarily Causing Hurt, Manslaughter, or
Culpible Homicide Not Amounting to Murder which is around 20 years
but you keep your life.
The line between just hitting your opponent to hurt him and a
killing blow in a heated fight, is very thin indeed. Misjudge your
strength and deal your opponent a fatal blow, bye bye life for
you... and your opponent.