Three versions of the principle of equivalent exchange

Authoritative Edition:

The principle of equivalent exchange is an objective requirement for commodity exchange, and only by practicing equivalent exchange can commodity production and commodity exchange be carried out normally, safeguard the interests of all producers and consumers, form an equal competitive environment, and enable commodity producers to survive the fittest in the competition, thereby promoting rapid and healthy economic development. It is emphasized that the principle of equivalent exchange applies only to the commodity economy and cannot be introduced into political life and other areas of social life.

Fullmetal Alchemist/WOW Alchemy Edition:

If you don't sacrifice something, you won't get anything, and in order to get anything, you have to pay the same price, which is the principle of equivalent exchange in alchemy! At that time, I believed that this was the only truth in this world, and even the alchemy master in WOW told me so!

Swordsman Edition:

The principle of equivalent exchange is the natural law that maintains the balance of this world, just like the law of conservation of mass or energy in nature! What we have lost will be compensated in some way, and what we have gained will inevitably be compensated for. But on the surface, sometimes it is like losing and gaining like the two ends of the scale, and it is difficult to balance the left and right, so everyone begins to feel contradictory and confused. Let my principle of equivalent exchange help you unravel a qiē!