stitch in time saves nine

(proverb) if you make small repairs now, it is much better than making large repairs later

Example Sentences:

A: Are you going to start exercising? You’ve gained a bit of weight.
B: I only gained five pounds! I’ll exercise if I get fatter.
A: But you should start soon, after all, a stitch in time saves nine. It’s easier to lose five pounds than it is to lose 25!
B: You’re right!

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Similar idioms:

1. be easier said than done