In fact a favourite problem of Tyndall is-Given the molecular forces in a mutton chop, deduce Hamlet or Faust therefrom. He is confident that the Physics of the Future will solve this easily.

The birth of science was the death of superstition.

History warns us that it is the customary fate of new truths to begin as heresies and to end as superstitions.

Science is organized common sense where many a beautiful theory was killed by an ugly fact.

Agnosticism, in fact, is not a creed, but a method, the essence of which lies in the rigorous application of a single principle. ... Positively the principle may be expressed: In matters of the intellect, follow your reason as far as it will take you, without regard to any other consideration. And negatively: In matters of the intellect, do not pretend that conclusions are certain which are not demonstrated or demonstrable.

If there is anything in the world which I do firmly believe in, it is the universal validity of the law of causation.

Science commits suicide when it adopts a creed.