It is far better for a man to go wrong in freedom than to go right in chains.

It is far better for a man to go wrong in freedom than to go right in chains.

Sit down before fact as a little child, be prepared to give up every conceived notion, follow humbly wherever and whatever abysses nature leads, or you will learn nothing.

The great end of life is not knowledge but action.

There is no sadder sight in the world than to see a beautiful theory killed by a brutal fact.

The whole analogy of natural operations furnishes so complete and crushing an argument against the intervention of any but what are termed secondary causes, in the production of all the phenomena of the universe; that, in view of the intimate relations between Man and the rest of the living world; and between the forces exerted by the latter and all other forces, I can see no excuse for doubting that all are co-ordinated terms of Nature's great progression, from the formless to the formed from the inorganic to the organic from blind force to conscious intellect and will.

Science commits suicide when it adopts a creed.