It is often fruitless to help people that are stupid and do stupid things.

(informal) Once a person of another race has a sexual relationship with a black person, implying that they will not return to having sexual relationships with members of the former race.

(colloquial, sarcastic, rhetorical question) Said when the interlocutor has shown surprise at the speaker's typical attitudes or behavior.

(UK) An informal greeting, expressing that one did not expect to see that person at this location.

(Canada, US, colloquial) Who upset you, or caused you to behave in a certain way? criticizing somebody perceived as making an unreasonable or negative remark

Used to introduce one's understanding of someone's point of view.

Synonym of see you in the funny papers

People who succeed do so through skill and preparation rather than mere chance.

(humorous) Used to highlight a fact which the speaker believes is obvious but the listener seems to minimize or disregard.

(informal) Indicates that the listener is now paying attention to the speaker.