The expected is what keeps us steady. It's the unexpected that changes our lives forever.
The affairs of this world are so shifting and depend on so many accidents, that it is hard to form any judgment concerning the future; nay, we see from experience that the forecasts even of the wise almost always turn out false.
The changeful change of circumstances. [Lat., Varia sors rerum.]
The strength of any plan depends on the time. Circumstances and things eternally shift and change.
Those who were high go down low, and those who've been low go up higher.
The laws of circumstance are abolished by new circumstances.
Time, whose millioned accidents creep in betwixt vows, and change decrees of kings, tan sacred beauty, blunt the sharpest intents, divert strong minds to the course of altering things.