Those who cannot change their ...

Those who cannot change their minds cannot change anything.
Those who cannot change their minds cannot change anything.

More phrases

This is ideological colonization. They colonize people with ideas that try to change mentalities or structures, but this is not new. This was done by the dictatorships of the last century.
The only way to make sense out of change is to plunge into it, move with it, and join the dance.
Never doubt that a small group of thoughtful, committed people can change the world. Indeed. It is the only thing that ever has.
To exist is to change, to change is to mature, to mature is to go on creating oneself endlessly.
 Henri Bergson
Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are the change that we seek.

Quotes from the same author

I have always held the religion of Muhammad in high estimation because of its wonderful vitality. It is the only religion which appears to me to possess that assimilating capability to the changing phase of existence which can make itself appeal to every age... I have studied him - the wonderful man, and in my opinion far from being an Anti-Christ he must be called the Saviour of Humanity.
We are more gullible and superstitious today than we were in the Middle Ages, and an example of modern credulity is the widespread belief that the Earth is round. The average man can advance not a single reason for thinking that the Earth is round. He merely swallows this theory because there is something about it that appeals to the twentieth century mentality.
A life spent making mistakes is not only more honorable, but more useful than a life spent doing nothing.
The possibilities are numerous once we decide to act and not react.
There is no sincerer love than the love of food.