THE ability of man, at a later time, to laugh over the pains of yesterday preserves him from becoming, as the case may be, a prig, a bore, or a hypochondriac. To-day I can smile, actually smile, at ...

McNair, James B. 1925. "The geographical distribution in North America of poison ivy (Rhus toxicodendron) and allies." American Journal of Botany, 12, (6) 338–350.

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