“世间哪有真正的完美？”这句话，用英语怎么说？

How come real perfection in the world?

或者 There is no real perfection in the world.

There is no true perfection in this world, is there?

简单点吧：there is no perfection in the world
或者：How could the world be perfect

nothing's perfect in the world

the world is full of loopholes

There is no perfect perfection in the world.
这句话最权威！