Heinz Isler

[Architects and engineers] must be willing to subordinate themselves to the emerging logic of the shell’s form as it evolves through experimentation.

— Heinz Isler

Among others there are three methods for shaping shells: the freely shaped hill, the membrane under pressure and the hanging cloth reversed.

— Heinz Isler

[T]heoretical considerations and derivations … are always based on severe simplifications of the assumptions.

— Heinz Isler