Art Of War

In the Art of War , Sun Tzu said:



17. Thus we may know that there are five essentials
   for victory:
   (1) He will win who knows when to fight and when
       not to fight.
   (2) He will win who knows how to handle both superior
       and inferior forces.
   (3) He will win whose army is animated by the same
       spirit throughout all its ranks.
   (4) He will win who, prepared himself, waits to take
       the enemy unprepared.
   (5) He will win who has military capacity and is
       not interfered with by the sovereign.

18. Hence the saying:  If you know the enemy
   and know yourself, you need not fear the result of a
   hundred battles.  If you know yourself but not the enemy,
   for every victory gained you will also suffer a defeat.
   If you know neither the enemy nor yourself, you will succumb in every battle.



That why I always feel that , when we want to sell our products

, we have to know very clear about our competitor's product. That

the reason why I feel that doing research and comparison of two or

more products is very important to us.


Refer Site:

http://www.chinapage.com/sunzi-e.html