For many years, when still a Yugoslav citizen, I was already a Swiss patriot, and in 1959, I obtained Swiss citizenship. However, I consider myself a world citizen, and I am very grateful to my adopted country that it allows me to be one.

Many objects of our three-dimensional perceptual world are not only chiral but appear in nature in two versions, related at least ideally, as a chiral object and its mirror image.

An object is chiral if it cannot be brought into congruence with its mirror image by translation and rotation.

Vladimir Prelog Quotes