"...all changes are dangerous and sometimes hurtful."
More than you ever wanted to know on the subject:
https://www.semperref.org/articles/semper-reformanda-the-origins-of-the-slogan-and-its-meaning
More than you ever wanted to know on the subject:
https://www.semperref.org/articles/semper-reformanda-the-origins-of-the-slogan-and-its-meaning