If you're in a bad situation, don't worry it'll change. If you're in a good situation, don't worry it'll change.
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 greatest discovery of all time is that a person can change his future by merely changing his attitude.
Complainers change their complaints, but they never reduce the amount of time spent in complaining.
They must often change, who would be constant in happiness or wisdom.
change, constant, happiness, wisdom
Very often a change of self is needed more than a change of scene.
change of self, change of scene