One cannot always overcome a powerful adversary.

(idiomatic) Alternative form of here you are

Alternative form of if you lie down with dogs, you get up with fleas

(slang) it is wise to wear a condom before sexual intercourse.

One doesn't require an expert to tell one what one already knows.

Synonym of look who's talking

Used to introduce, or alluding to, an apt adage.

Used to allude to something unsaid or hinted at.

(informal) An expression used to point out that another person's joke or cleverness has been recognised or understood, either to acknowledge its cleverness or alternatively to communicate a lack of amusement.

Alternative form of you kiss your mother with that mouth