Endeavor Quote by Robert Green Ingersoll

Liberty of thought means liberty to communicate one's thought.

— Salvador de Madariaga

Liberty, according to my metaphysics is a self-determining power in an intellectual agent. It implies thought and choice and power.

— John Adams

By physical liberty I mean the right to do anything which does not interfere with the happiness of another. By intellectual liberty I mean…

— Robert Green Ingersoll

Intellectual liberty is the air of the soul, the sunshine of the mind, and without it, the world is a prison, the universe is…

— Robert Green Ingersoll

Thought is subversive and revolutionary, destructive and terrible, Thought is merciless to privilege, established institutions, and comfortable habit. Thought is great and swift and…

— Bertrand Russell

Intellectual freedom means the right to re-examine much that has been long taken for granted. A free man must be a reasoning man, and…

— Robert H. Jackson

Liberty of thinking, and of expressing our thoughts, is always fatal to priestly power, and to those pious frauds on which it is commonly…

— David Hume

Liberty of thought is the life of the soul.

— Voltaire

“One can be granted intellectual liberty when one has no intellect.”

— George Orwell

Thought is more than a right - it is the very breath of man. Whoever fetters thought attacks man himself. To speak, to write,…

— Victor Hugo

Intellectualism' is the belief that our mind comes upon a world complete in itself, and has the duty of ascertaining its contents; but has…

— William James

The right to express our thoughts means something only if we are able to have thoughts of our own

— Erich Fromm