– Ernst von Weizsäcker, one of the eminences grises of the materials-use community, noted that higher prices don’t have to mean poor economic performance.
- Ernst von Weizsäcker, ang isa sa eminences grises ng komunidad materyales paggamit, ng nabanggit na mas mataas na presyo ay walang kahulugan mahinang pagganap ng ekonomiya.