A sentence with similar meaning to "All good things must come to an end":
There is no sun that never sets, and there is no constant weather.
it's endless hate to gather and disperse in a hurry.
it's normal to get together and leave, so don't leave your tears sad.
sometimes, when you get together and leave, you go away for no reason.
Life comes and goes as usual, and fate is doomed.
flowers bloom and everything falls. There will come a time when we get together and leave.
the moon is full of rain and shine, and people have joys and sorrows.
gathering and parting is fate, but fate may not be involved.
all good things must come to an end: tiān xià méi yǒu bù sàn de yán xí
English: There is no never-ending feast.
Explanation: all good things must come to an end. It means that reunion is relative and will eventually be separated. With "all things must come to an end, all things must come to an end".
Source: Ming Feng Menglong's "Awakening the World", Volume 35: "All good things must come to an end, so if you close for a thousand years, there will be a parting day."