Soon ripe, soon rotten; soon wise, soon foolish.
Soon grass, soon hay.
Soon found, soon lost.
Soon learned, soon forgotten.
A tale is soon told; a deed is not soon done.
A small family is soon provided for.
All Hallows moon, witches soon.
The glow soon becomes ashes.
Eaten bread is soon forgotten.
Long absent, soon forgotten.
Think late, suffer soon.
Little kettles soon boil over.
A fool and his money are soon parted.
The longest day soon comes to an end.
What flares up fast, extinguishes soon.
Even things which seem separate and finished are infinitely connected and will infinitely connect. This connection happens as soon as you let it, as soon as you engage - as soon as you even attempt to engage.
Little pots soon run over.
Soon enough is well enough.
A building without foundation is soon demolished.
A pain in the foot is soon forgotten -- a pain in the head is not.
Have patience, the grass will be milk soon enough.