-Amar também é bom: porque o amor é difícil. O amor de duas criaturas humanas talvez seja a tarefa mais difícil que nos foi imposta, a maior e última prova, a obra para a qual todas as outras são apenas uma preparação.
-Loneliness is not the same as being alone. Many people have times when they are alone through circumstances or choice. Being alone can be experienced as positive, pleasurable, and emotionally refreshing if it is under the individual's control. Solitude is the state of being alone and secluded from other people, and often implies having made a conscious choice to be alone. Loneliness is unwanted solitude. Loneliness does not require being alone and is experienced even in crowded places. It can be described as the absence of identification, understanding or compassion. Loneliness can be described as a feeling of isolation from other individuals, regardless of whether one is physically isolated from others or not. It may also be described as a yearning for love or companionship, which is unfulfilled, but cannot seemingly be achieved, or may stem from the lack of love in one's life, and hence may lead to emotions such as rejection, despair and low self-esteem. Feelings of loneliness may be similar to feelings of the death or loss of a loved one.