Respectfully Quoted: A Dictionary of Quotations. 1989.
Thomas Lansing Masson (18661934)
No brain is stronger than its weakest think.
THOMAS L. MASSON, Laughs, p. 167 (1926).
This quotation appears as The brain is as strong as its weakest think, in Eleanor Doan, The Speakers Sourcebook, p. 263 (1960) with no source acknowledged, and is repeated in A. K. Adams, The Home Book of Humorous Quotations, p. 238 (1969).