Someone had said "the best fighter is never angry". It is also said that you can win over others by defeating anger. How do you control your anger?

Exactly, anger management leads to success in professional and personal life. Being able to control the behavior is good because most of the anger is due to provocation. I'll have a steering group meeting next week and I know one of the steering group members is doing to provoke as much as she can to make me lose my cool. Won't happen. I already feel sorry for her because she will make a fool of herself. ;-)

In a work environment l control it by being focussed on the key aspects at hand.Mostly some people don't want their opnions countered.It is a serious weakness and obviously it leads to anger.One thing for real is," we agree to disagree amicably",meaning that even if we differ in opinions,we still maintain our friendship or working relationship.Anger in work environments or in general life situations is bad and settles nothing.

عن طريق التمسك باخلاق المسلم الذى وصت المسلم على الصبر والتفاهم وتبادل الحوار 

قال تعالى :

{وَالْكَاظِمِينَ الْغَيْظَ وَالْعَافِينَ عَنِ النَّاسِ وَاللّهُ يُحِبُّ الْمُحْسِنِين} و قال رسول الله صلى الله عليه وسلم -‏‏ ‏: ( ‏من كظم غيظاً وهو يستطيع أن ينفذه دعاه الله يوم القيامة على رءوس الخلائق حتى يخيّره في أي الحور شاء )

بالحلم وبالامتثال لقوله تعالى والكاظمين الغيض

i let you win if you are my boss, since the boss is always right  for coleages its better to change the subject. all in all silence is also an answer for a wise man.

Whenever i am feeling angry, i remind myself of this " your bad time started as soon as you are angry"

if you would angry you will be  loser, so alwayes you make a first agree with opinion then you expain your argument.a person can not get everything and should not be rational that, you only need what's goes the perfect on you & u prepared for that.

Anger comes out as a result of negatively channelled efforts. Thus one has to always channel their efforts over positive thoughts in every situation. Let your inner motivation be your driving force in your every day life and you will realise that you do not have time to be angry. Anger management in life should be exercised in every situation especially the work environment where there is so much pressure to see the best in you and the worst whether intentionally or unintentionally.