Without freedom of thought, ...

Without freedom of thought, there can be no such thing as wisdom - and no such thing as public liberty without freedom of speech.
Without freedom of thought, there can be no such thing as wisdom - and no such thing as public liberty without freedom of speech.

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
Freedom is the right to live as we wish.

Quotes from the same author

One today is worth two tomorrows.
The doorstep to the temple of wisdom is a knowledge of our own ignorance.
Watch the little things; a small leak will sink a great ship.
Honesty is the best policy.
Dost thou love life? Then do not squander time, for that is the stuff life is made of.