When it is not necessary to change
Progress is impossible without change, and those who cannot change their minds cannot change anything.
He who rejects change is the architect of decay. The only human institution which rejects progress is the cemetery.
rejects, architect, change, decay
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
Change your opinions, keep to your principles change your leaves, keep intact your roots.
Complainers change their complaints, but they never reduce the amount of time spent in complaining.