They must often change, who would be constant in happiness or wisdom.
change, constant, happiness, wisdom
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
He who rejects change is the architect of decay. The only human institution which rejects progress is the cemetery.
rejects, architect, change, decay
Progress is impossible without change, and those who cannot change their minds cannot change anything.
Change means that what was before wasn't perfect. People want things to be better.
CHANGE, CHANGE MEANS THAT WAS BEFORE WASN'T PERFECT