Archer John Porter Martin Quotes

Top 2 wise famous quotes and sayings by Archer John Porter Martin

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Archer John Porter Martin quotes: If every conceivable precaution is taken at first, one is often too discouraged to proceed at all. If every conceivable precaution is taken at first, one is often too discouraged to proceed at all.
Archer John Porter Martin quotes: Much can often be learned by the repetition under different conditions, even if the desired result is not obtained. Much can often be learned by the repetition under different conditions, even if the desired result is not obtained.