improve, perfect, change
When we are no longer able to change a situation - we are challenged to change ourselves.
Be content with what you are, and wish not change nor dread your last day, nor long for it.
CHANGE, BE CONTENT WITH WHAT ARE YOU
The greatest discovery of all time is that a person can change his future by merely changing his attitude.
They must often change, who would be constant in happiness or wisdom.
change, constant, happiness, wisdom
Life belongs to the living, and he who lives must be prepared for changes.