Remember, one swallow doesn't make a summer, so let's wait for more evidence before celebrating.

Remember, one swallow does not make a summer, so don't celebrate the project's early success yet.

The weather has been warm all day, but let's not declare it summer yet — one swallow doesn't a summer make.

She reminded him that one swallow doesn't a spring make whenever he expected quick success.

She reminded him that one swallow does not a spring make when he insisted that a single success meant everything.

Although the team's single win was exciting, one swallow does not make a spring, and they still need to prove themselves.

After a sudden sales uptick, the manager warned the team that one swallow doesn't make a spring.