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.

It is the curse of humanity that it learns to tolerate even the most horrible situations by habituation.

Belief cannot be reckoned with in terms of science, for science and faith are mutually exclusive.

Imprisoned quacks are always replaced by new ones.

'Science in itself' is nothing, for it exists only in the human beings who are its bearers. 'Science for its own sake' usually means nothing more than science for the sake of the people who happen to be pursuing it.

Brevity in writing is the best insurance for its perusal.

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