Intelligence is the handmaiden of flexibility and change.

To do things today exactly the way you did them yesterday saves thinking. — Woodrow Wilson

Any change  even a change for the better  is always accompanied by drawbacks and discomforts. — Arnold Bennett

Old habits are strong and jealous. — Dorothea Brande

Every new adjustment is a crisis in self-esteem. — Eric Hoffer

Every new truth begins in a shocking heresy. — Margaret Deland

Birth is violent  whether it be the birth of a child or the birth of an idea. — Marianne Williamson

Any truth creates a scandal. — Marguerite Yourcenar

Even in slight things the experience of the new is rarely without some stirring of foreboding. — Eric Hoffer

Change is not made without inconvenience  even from worse to better. — Richard Hooker

The key to change ... is to let go of fear. — Rosanne Cash