Men have gone towards each other because of that ray of light which each of them contains; and light resembles light. It reveals that the isolated man, too free in the open expanses, is doomed to adversity as if he were a captive, in spite of appearances; and that men must come together that they may be stronger, that they may be more peaceful, and even that they may be able to live.
For men are made to live their life in its depth, and also in all its length. Stronger than the elements and keener than all terrors are the hunger to last long, the passion to possess one's days to the very end and to make the best of them. It is not only a right; it is a virtue.

Light (1919) - Ch. XVI - De Profundis Clamavi