“His head was always most valuable when he had lost it. In such moments he put two and two together and made four million.”
The Innocence of Father Brown (1911) The Queer Feet
The Father Brown Mystery Series (1910 - 1927)
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G. K. Chesterton 229
English mystery novelist and Christian apologist 1874–1936Related quotes
"That Two Heads are Better than One".
Sketches from Life (1846)

30,000 Pounds of Bananas
Song lyrics, Verities & Balderdash (1974)

Country Living and Country Thinking, Preface, reported in Bartlett's Familiar Quotations, 10th ed. (1919).

“The most valuable of all talents is that of never using two words when one will do.”

Sir Ian Hamilton, The Soul and Body of an Army https://archive.org/details/soulbodyofarmy00hamiiala, 1921