Noun
(idiomatic, psychology) The illusion that what one would like to be true is actually true.
(idiomatic) Decision-making based on self-delusion.
Source: en.wiktionary.orgStop the habit of wishful thinking and start the habit of thoughtful wishes. Mary Martin
If you look for truth, you may find comfort in the end; if you look for comfort you will not get either comfort or truth only soft soap and wishful thinking to begin, and in the end, despair. C. S. Lewis
Theorems often tell us complex truths about the simple things, but only rarely tell us simple truths about the complex ones. To believe otherwise is wishful thinking or "mathematics envy." Marvin Minsky
There is wishful thinking in Hell as well as on Earth. C. S. Lewis
Writing what you wished was the most dangerous form of wishful thinking. Amy Tan
Providence and Manifest Destiny are synonyms often invoked to support arguments based on wishful thinking. Frank Herbert