E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Bernard.
Bonus Bernardus non videt omnia (see above). We are all apt to forget sometimes; events do not always turn out as they are planned before-hand.
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Poor Peter was to win honours at Shrewsbury school, and carry them thick to Cambridge; and after that a living awaited him, the gift of his godfather, Sir Peter Arley; but Bonus Bernardus non videt omnia, and Poor Peters lot in life was very different to what his friends had planned.Mrs. Gaskell: Cranford, chap. vi.