to see the writing on the wall

it's easier said than done

Alternative form of il bue che dice cornuto all'asino

a bird in the hand is worth two in the bush; better an egg today than a hen tomorrow

to give credit where credit's due

it is better to advance one's own interests (even through illicit or questionable means) than to surrender oneself; it is best to look out for oneself before examining moral considerations; one's got to do what one's got to do

revenge is a dish best served cold

do unto others as you would have them do unto you

you won't get away with something for ever; at some point you will leave a clue and be found out / to get one's just deserts / justice always prevails

(cooking) chef (head cook) / (by extension) a sophisticated cook