(figuratively, informal) to be heavy-handed

(figuratively, informal) not to beat around the bush, go straight to the point

(informal) tell me about it

all that glitters is not gold

(figuratively) to be in a quandary, to be unsure of what to do, not to know where you stand

one swallow does not a summer make

to not be an insurmountable task, an endeavour too large to handle, to not be so hard

the apple does not fall far from the tree, a wild goose never laid a tame egg

it's not worth it; there's no point; the game is not worth the candle

(intransitive, figuratively, informal) not to go in for half-measures, not to half-ass it; not to embarrass oneself with manners