one swallow does not a summer make
idiomPart ofswallow
one swallow does not a summer make — idiom
1. said to mean that a single positive sign or piece of evidence is not enough to p
1.idiom
Definition
said to mean that a single positive sign or piece of evidence is not enough to prove that a major change or lasting situation has really happened
Example
Vivek celebrated his first sale, but his mentor reminded him that one swallow does not a summer make.
The early warm day felt like spring, but one swallow does not a summer make — snow might still come.