They must often change, who would be constant in happiness or wisdom.
change, constant, happiness, wisdom
The greatest discovery of all time is that a person can change his future by merely changing his attitude.
A heart well prepared for adversity in bad times hopes, and in good times fears for a change in fortune.
CHANGE, A HEART WELL PREPARED FOR ADVERSITY IN BAD TIMES HOPES
When you jump for joy, beware that no one moves the ground from beneath your feet.
CHANGE, BEWARE THAT NO ONE MOVES THE GROUND FROM BENEATH YOUR FEET
The only way to make sense out of change is to plunge into it, move with it, and join the dance.