“You can wait only so long for a blackened window to be illuminated.”
“You can only be strong for so long.”
“How could I, who loved life so intensely, have let myself be entangled for so long in that balderdash of books and paper blackened with ink!”
“You can only chase a butterfly for so long.”
“You can only shove shit under your bed for so long before it starts moving around and wanting to get out. You can only cope for so long before everything breaks.”
“Because," Leonard said, "light overcomes darkness. A tiny match can illuminate the darkest room. As long as there is some light somewhere in the universe you can be defeated.”