@yidezhang
This general notion of the antagonism of the tissues, especially of epithelium
and connective tissue, was the subject to which he devoted his scientific
energies, especially in the last ten years of his life. Experiments on animals and
a systematic investigation of the growth of tissues in a nutrient fluid were
carried out side by side. How thankful he was, with his hands tied as they
were by his duties, to have found such an admirable and infinitely enthusiastic
fellow-worker in Frälein Knake! He succeeded in securing wonderful results
bearing on the factors which favour the growth of epithelium at the expense of
that of connective tissue, results which may well be of decisive importance for
the study of cancer. He also had the pleasure of inspiring his own son to
become his intelligent and independent fellow-worker, and of exciting the
warm interest and co-operation of Sauerbruch just in the last years of his life,
.