Analysis of information sources in references of the Wikipedia article "فهرست فیلسوفان فایدهگرا" in Persian language version.
Happiness is the only thing of real value in existence
As all men desire their own happiness, praise or blame is bestowed on actions and motives, according as they lead to this end; and as happiness is an essential part of the general good, the greatest-happinesss principle indirectly serves as a nearly safe standard of right and wrong.
Happiness is the only thing of real value in existence
Happiness is the only thing of real value in existence
Happiness is the only thing of real value in existence
Happiness is the only thing of real value in existence