“There is no time apart from change. There is no such thing as a clock outside the network of changing relationships. …one can only compare how fast one thing is happening with the rate of some other process.”
Three Roads to Quantum Gravity (2000)
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Lee Smolin 52
American cosmologist 1955Related quotes
“Time is described only in terms of change in the network of relationships that describes space.”
Three Roads to Quantum Gravity (2000)
Source: The Curious Incident of the Dog in the Night-Time

“And that is how change happens. One gesture. One person. One moment at a time.”
Source: The Sweet Far Thing

“Time only moves in one direction. Remember that. Things always change.”
Source: The Reluctant Fundamentalist

Niebuhr's preferred form, as declared by his widow
The Serenity Prayer (c. 1942)
Variant: God, give us grace to accept with serenity the things that cannot be changed, courage to change the things which should be changed, and the wisdom to distinguish the one from the other.

“When the rate of change outside exceeds the rate of change inside, the end is in sight.”
Variant: If the rate of change on the outside exceeds the rate of change on the inside, the end is near.