Theories are like a stairway; by climbing, science widens its horizon more and more, because theories embody and … - Claude Bernard

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When I saw photographs of children murdered by the Fascist, I felt furious pity. When the supporters of Franco talked of Red atrocities, I merely felt indignant that people should tell such lies. In the first case I saw corpses, in the second only words. . . I gradually acquired a certain horror of the way in which my own mind worked. It was clear to me that unless I cared about every murdered child impartially, I did not really care about children being murdered at all.

Claude Bernard

Theories are like a stairway; by climbing, science widens its horizon more and more, because theories embody and necessarily include proportionately more facts as they advance.

Advance, Climbing, Horizon, Science, Theories, Widens

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A contemporary poet has characterized this sense of the personality of art and of the impersonality of science in these words,-'Art is myself; science is ourselves. '

Art, Contemporary, Impersonality, Personality, Science

We achieve more than we know. We know more than we understand. We understand more than we can explain.

Achieve, Achievement, Know, Knowledge, Science, Understand

The first entirely vital action, so termed because it is not effected outside the influence of life, consists in the creation of the glycogenic material in the living hepatic tissue. The second entirely chemical action, which can be effected outside the influence of life, consists in the transformation of the glycogenic material into sugar by means of a ferment.

Glycogenic, Hepatic, Material, Mean, Sugar, Tissues

Now, a living organism is nothing but a wonderful machine endowed with the most marvellous properties and set going by means of the most complex and delicate mechanism.

Machine, Machines, Marvellous, Mean, Science, Wonderful

Even mistaken hypotheses and theories are of use in leading to discoveries. This remark is true in all the sciences. The alchemists founded chemistry by pursuing chimerical problems and theories which are false. In physical science, which is more advanced than biology, we might still cite men of science who make great discoveries by relying on false theories. It seems, indeed, a necessary weakness of our mind to be able to reach truth only across a multitude of errors and obstacles.

Men, Mistake, Problems, Pursuing, Science, Truth