Fortune's wheel never stands still the highest point is therefore the most perilous. Maria Edgeworth
The higher up on Fortune's wheel you see A wretch ascend, the sooner he will fall, And where his head is now, his feet will be. Ludovico Ariosto
Since to raise up and comfort in distress Whom Fortune's wheel beats down in changeful run, Was never blamed; with glory oftener paid. Ludovico Ariosto
Fortune's wheel is ever turning. Polish Proverb
The highest spoke in fortune's wheel may soon turn lowest. Latin Proverb