Zitat des Tages von Otto Wallach:
As soon as science has solved one problem, new ones arise. This is the essence of science, and it applies, of course, also to the field of essential oils.
As soon as we can wrest from Nature the secret of the internal structure of the compounds produced by her, chemical science can then even surpass Nature by producing compounds as variations of the natural ones, which the living cell is unable to construct.
It has been possible to trace historically back to a very early age the taxes which were imposed on medicines, spices and similar substances in German towns. Thus, for instance, one finds that in the year 1500, thirteen, in 1540, thirty-eight, and in 1708, already one hundred and twenty vegetable oils are mentioned.
Most of the oils which are valued as scents are mixtures of substances; only the combined effect of these leads to the known result.
