The clash of ideas is the ...

The clash of ideas is the sound of freedom.
The clash of ideas is the sound of freedom.
 Lady Bird Johnson

More phrases

All the great things are simple, and many can be expressed in a single word: freedom, justice, honor, duty, mercy, hope.
I know but one freedom and that is the freedom of the mind.
 Antoine de Saint-Exupéry
Freedom is not worth having if it does not connote freedom to err.
The amount of happiness that you have depends on the amount of freedom you have in your heart.
 Thích Nhất Hạnh
Without freedom of thought, there can be no such thing as wisdom - and no such thing as public liberty without freedom of speech.

Quotes from the same author

The environment is where we all meet; where all have a mutual interest; it is the one thing all of us share.
 Lady Bird Johnson
My heart found its home long ago in the beauty, mystery, order and disorder of the flowering earth. I wanted future generations to be able to savor what I had all my life.
 Lady Bird Johnson
Art is the window to man's soul. Without it, he would never be able to see beyond his immediate world; nor could the world see the man within.
 Lady Bird Johnson
Walk away from it until you're stronger, All your problems will be there when you get back, but you'll be better able to cope.
 Lady Bird Johnson
The challenge we now face is to build on the record of the past, to continue accepting new responsibilities and seeking new opportunities to serve.
 Lady Bird Johnson