” these relationships .. have been there since the creation of the world”. Heisenberg is of course most famous for his Uncertainty Principle, which states that it is NOT possible for us to know everything. The more certain we are of one factor, then the more uncertain we are of another. (In atomic physics for instance if you know a particle’s position you cannot know it’s momentum etc).
He was though, certain about a structure underlying creation. Here he is in a letter to his sister Edith in 1958:
“I have attempted an as yet-unkown-ascent to the fundamental peak of atomic theory with great efforts during the last five years. And now, with the peak directly ahead of me, the whole terrain of interrelationships in atomic theory is suddenly and clearly spread out before my eyes. That these interrelationships display, in all their mathematical abstraction, an incredible degree of simplicity, is a gift we can only accept humbly. Not even Plato could have believed them to be so beautiful. For these interrelationships cannot have been invented; they have been there since the creation of the world”.