It is the curse of humanity that it learns to tolerate even the most horrible situations by habituation, that it forgets the most shameful happenings in the daily shame of events, and that it can hardly understand when individuals aim to destroy this infamy.

If we would serve science, we must extend her limits, not only as far as our own knowledge is concerned, but in the estimation of others.

The body is a cell state in which every cell is a citizen. Disease is merely the conflict of the citizens of the state brought about by the action of external forces.

Between animal and human medicine, there is no dividing line-nor should there be.

The 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.

My politics were those of prophylaxis, my opponents preferred those of palliation.

Only those who regard healing as the ultimate goal of their efforts can, therefore, be designated as physicians.