one swallow does not a summer make

one swallow does not a summer make

proverb One piece of evidence does not mean that something is definitely the case or is going to happen. A reference to the migration of swallows that happens in the spring or early summer. A lot of things went right for us this year, but one swallow does not a summer make—we still have a long ways to go before our finances are back in order. A: "I'm really worried the boss is going to fire me. He said he really wasn't happy with my work lately!" B: "Calm down, one swallow does not a summer make."
See also: does, make, not, one, summer, swallow
Farlex Dictionary of Idioms.
See also:
  • teach a man to fish
  • it takes a village
  • village
  • a little knowledge is a dangerous thing
  • a little learning is a dangerous thing
  • best-laid plans go astray, the
  • the best-laid plans
  • the best-laid plans go astray
  • the best-laid plans of mice and men
  • better bend than break