The happiest of all lives is a busy solitude. – Voltaire

This great misfortune — to be incapable of solitude. – Jean De La Bruyere

But on the first day came veiled spirits from all hours into his soul… a soft intoxication, which the atmosphere of nature, like that of a wine-store, communicated to him, spread itself, like an enchanted solitude around his soul. – Jean Paul Friedrich Richter, Hesperus, or Forty-Five Dog-Post-Days: A Biography,

I have a great deal of company in the house, especially in the morning when nobody calls. – Henry David Thoreau