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.

The wise man, knowing how to enjoy achieved results without having constantly to replace them with others, finds in them an attachment to life in the hour of difficulty.

At this point, an urgent question arises: [...] Is it our duty to seek to become a thorough and complete human being, one quite sufficient unto himself; or, on the contrary, to be only a part of a whole, the organ of an organism? Briefly, is the division of labor, at the same time that it is a law of nature, also a moral rule of human conduct; and, if it has this latter character, why and in what degree?

The term suicide is applied to all cases of death resulting directly or indirectly from a positive or negative act of the victim himself, which he knows will produce this result

It is too great comfort which turns a man against himself. Life is most readily renounced at the time and among the classes where it is least harsh.

One does not advance when one walks toward no goal, or - which is the same thing - when his goal is infinity.

Sociological method as we practice it rests wholly on the basic principle that social facts must be studied as things, that is, as realities external to the individual. There is no principle for which we have received more criticism; but none is more fundamental. Indubitably for sociology to be possible, it must above all have an object all its own. It must take cognizance of a reality which is not in the domain of other sciences... there can be no sociology unless societies exist, and that societies cannot exist if there are only individuals.