Idioms

used to express surprise at an unexpected connection or meeting

everything has a cost; you cannot get something for nothing

Matching variant: there's no such thing as a free lunch

to describe a situation frankly, without softening or hiding the truth

used to say a topic is separate and won't be discussed now

later events are already familiar or easily assumed, so they need no further telling

an extremely serious or urgent matter

Matching variant: It's a matter of life and death

I cannot understand it at all

it is too soon to know how something will turn out

rumors or accusations usually contain at least some truth

Matching variant: there is no smoke without fire

to back up your words with action, especially money

two alternatives have no meaningful difference

Matching variant: It's six of one and half a dozen of the other

to declare one's position publicly when doing so calls for courage or principle

to act quickly while the opportunity exists

used to accept an unfortunate result as something that happens in life

It is now your responsibility to make the next decision or move.

the hidden difficulties of a plan are in its small details

Other people's situations always seem better than your own.

ultimately, after everything has been discussed and considered

at a moment of crisis when pressure forces an important choice

used after simple instructions to signal that the task is finished or the result achieved

used to criticize a selfish attitude of being comfortable and ignoring other people's difficulties

used to say emphatically that a particular event will never happen

the result is effectively decided although the event has not formally ended

an irreversible decision has fixed the course of what happens next

the people who hold authority and make important decisions

You are free to enjoy all the opportunities life has to offer.

that is the particular difficulty or obstacle

people will strongly disapprove of you and your reputation will suffer