every tide has its ebb; fortune is fleeting
A classical proverb meaning that when something reaches its peak, it inevitably declines. Used to express the transience of prosperity or good fortune.
There is a proverb: 'Every tide has its ebb.'
A more common four-character idiom with a similar meaning: 'the prosperous inevitably decline.'
A classical Japanese proverb derived from Chinese philosophy, reflecting the natural cycle of waxing and waning.