situation, worry, change
They must often change, who would be constant in happiness or wisdom.
CHANGE, CONSTANT IN HAPPINESS OR WISDOM
A small group of thoughtful people could change the world. Indeed, it's the only thing that ever has.
Progress is impossible without change, and those who cannot change their minds cannot change anything.
Any change, even a change for the better, is always accompanied by drawbacks and discomforts.
Goals allow you to control the direction of change in your favor.
CHANGE, CONTROL THE DIRECTION OF CHANGE IN YOUR FAVOUR