As long as vitalism and spiritualism are open questions so long will the gateway of science be open to mysticism.
Rudolf VirchowLife itself is but the expression of a sum of phenomena, each of which follows the ordinary physical and chemical laws.
Rudolf VirchowThe task of science, therefore, is not to attack the objects of faith, but to establish the limits beyond which knowledge cannot go and found a unified self-consciousness within these limits.
Rudolf Virchow