Melancholy suicide. - This is connected with a general state of extreme depression and exaggerated sadness, causing the patient no longer to realize sanely the bonds which connect him with people and things about him. Pleasures no longer attract.

Even one well-made observation will be enough in many cases, just as one well-constructed experiment often suffices for the establishment of a law.

Faith is not uprooted by dialectic proof; it must already be deeply shaken by other causes to be unable to withstand the shock of argument.

At first sight, one does not see what relations there can be between religion and logic.

The Christian conceives of his abode on Earth in no more delightful colors than the Jainist sectarian. He sees in it only a time of sad trial; he also thinks that his true country is not of this world.

It is only by historical analysis that we can discover what makes up man, since it is only in the course of history that he is formed.

Man's characteristic privilege is that the bond he accepts is not physical but moral; that is, social. He is governed not by a material environment brutally imposed on him, but by a conscience superior to his own, the superiority of which he feels. Because the greater, better part of his existence transcends the body, he escapes the body's yoke, but is subject to that of society.