I cannot say whether things ...

I cannot say whether things will get better if we change; what I can say is they must change if they are to get better.
I cannot say whether things will get better if we change; what I can say is they must change if they are to get better.
 Georg C. Lichtenberg

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

We accumulate our opinions at an age when our understanding is at its weakest.
 Georg C. Lichtenberg
Even truth needs to be clad in new garments if it is to appeal to a new age.
 Georg C. Lichtenberg
The most perfect ape cannot draw an ape; only man can do that; but, likewise, only man regards the ability to do this as a sign of superiority.
 Georg C. Lichtenberg
I am confident of my ability to demonstrate that one can sometimes believe in something and yet not believe in it. Nothing is less fathomable than the systems that motivate our actions.
 Georg C. Lichtenberg
Honest unaffected distrust of human abilities under all circumstances is the surest sign of strength of mind.
 Georg C. Lichtenberg