Loneliness
Loneliness is an unpleasant feeling in which a person experiences a strong sense of emptiness and solitude resulting from inadequate levels of social relationships, however it is a subjective experience. Loneliness has also been described as social pain - a psychological mechanism meant to alert an individual of undesired isolation and motivate her/him to seek social connections.

Solitude
La solitude (de solus « seul ») est l’état, ponctuel ou durable, d’une personne seule, c’est-à-dire d’une personne qui n’est engagée dans aucun rapport avec autrui.

1 click + vignettes = plein écran
1 click + thumbnails = enlarge