• A great gulf, however, has been opened between man's material advance and his social and moral progress, a gulf in which he may one day be lost if it is not closed or narrowed.

    Lester B. Pearson: A great gulf, however, has been opened between man's material advance and his social and moral progress, a gulf in which he may one day be lost if it is not closed or narrowed.
    Lester B. Pearson (1974). “Mike: the memoirs of the Right Honourable Lester B. Pearson”, Crown