Most of us are just about as happy as we make up our minds to be.
Abraham Lincoln (1809–1865) American lawyer, politician, US President (1861–65)
(Spurious)
Not found any earlier than in casual attribution in 1914. Also sometimes attributed to Mark Twain.
For more discussion of the source of this quotation, see: Quote Origin: Folks Are Usually About as Happy as They Make Up Their Minds To Be – Quote Investigator®.
