“The maturity of man—that means, to have reacquired the seriousness that one had as a child at play”
“Man's maturity: to have regained the seriousness that he had as a child at play.”
“The struggle of maturity is to recover the seriousness of a child at play.”
“I had a brief glimpse of a frail, mature man carrying a ravaged child in his arms...”
“I could call my wandering thoughts together. I had hardly any patience with the serious work of life which, now that it stood between me and my desire, seemed to me child's play, ugly monotonous child's play.”
“It was to the small serious boy that he turned for his enjoyment. He had bought the child some cheap wooden blocks, and with these the little one played endlessly and intently, with a purpose obscure to the adult mind, but completely absorbing.”