Yiddish: Don't look for a notch in the saw.

Don't fixate on an imperfection. If you look, you will notice many more.
SOURCE: Bernstein, Jüdische Sprichwörter und Redensarten.

זוך ניט קיין פּגימה אויף דער זעג.

Zukh nit keyn pgime af der zeg.

Don't look for a notch in the saw.