I come across this Gauss quote in a presentation on non-Euclidean geometry. It likely comes from the correspondence between Gauss and the Hungarian mathematician Bolyai in 1799, although this more explicit version lacks the implied intent that I misrepresent from the original quote.

This is a reminder to myself to always remain foolish in my endeavours. I believe that certainty often comes at the price of creativity, and that's a bad trade. In the past, I have lauded the contrarians but perhaps it is the foolhardy that deserve my praise as antipodal views are often just as inflexible as their opposition.