One must change one's tactics every ten years if one wishes to maintain one's superiority.
one must change, tactics, ten years, wishes, maintain
Sometimes if you want to see a change for the better, you have to take things into your own hands.
CHANGE, SOMETIMES IF YOU WANT TO SEE A CHANGE
If you want to make enemies, try to change something.
make enemies, change something, change
You are always free to change your mind and choose a different future, or a different past.
They must often change, who would be constant in happiness or wisdom.
CHANGE, CONSTANT IN HAPPINESS OR WISDOM