• Truths that become old become decrepit and unreliable; sometimes they may be kept going artificially for a certain time, but there is no life in them.

    P.D. Ouspensky: Truths that become old become decrepit and unreliable; sometimes they may be kept going artificially for a certain time, but there is no life in them.
    'A New Model of the Universe' (2nd ed., 1934) preface