Work, which makes a man free, ...

Work, which makes a man free, and thought, which makes him worthy of freedom.
Work, which makes a man free, and thought, which makes him worthy of freedom.

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

An invasion of armies can be resisted, but not an idea whose time has come.
Life is the flower for which love is the honey.
I dislike wealth and prosperity, especially that of other men.
God has made the cat to give man the pleasure of caressing the tiger.
A mother's arms are made of tenderness and children sleep soundly in them.