Does Solitude Ensure Survival?

"No man will ever unfold the capacities of his own intellect, who does not at least checker his life with solitude." Thomas De Quincy. (1785-1859.)

(October, 09, Geneva, Sri Lanka Guardian)
Friends, if we have to accept that we can't change the warring world or our deeply flawed selves then, to keep going, perhaps we need regular periods of total withdrawal from some of life's grim realities and our fellow travelers.

Do you seek periods of solitude on occasion or does it frighten you?