what goes up must come down

What goes up must come down.
Anything that has risen or been raised up must eventually fall down.

≅ Высоко летать – больно падать.
≅ Хорошо летаешь, да где-то сядешь.
≅ Хорошо / Звонко поёшь, да где-то сядешь.

go up like a rocket and come down like a stick
{досл.: взлететь как ракета, а упасть как хворостина}, взлететь высоко и больно шлёпнуться {выражение создано Т. Пейном (Th. Paine, 1737-1809)}

And the final event to himself has been that as he rose like a rocket, he fell like a stick. (Th. Paine, "Letter to the Addressers, Referring to Edmund Burke", 1792, HBQ) — Так вышло, что Эдмунд Берк блистательно начал и плачевно кончил.

Also used in situations where you want to say that one thing inevitably
follows another. For example, if someone is very annoyed, you know they will calm down eventually.