This in turn leads to a reaction in the field of secondary education corresponding with the close ch over their academic reputations kept by universities m countries where freedom of expression of opinion is still permitted. Educationists in such countries hesitate to encóur-age the movement of teachers and children to countries where freedom of expression of opinion is no longer tolerated and an active policy of political indoctrination pursued, and are also reluctant to receive teachers from authoritarian countries without the most explicit guarantees and the provision of safeguards against foreign propaganda he situation is thus not one wh scientific workers can contempt without concern. The obstacles to free exchange of thought across national frontiers no less than inside many of those frontiers are growing just when science has in many way annihilated distance and incredibly multiplied means of communication Even the almost unlimited possibi ties offered by the natural and applied sciences fo conve mind a sense of the unit ledge and the ubiquitous results of scientific research, and in encouraging the development of the sense of human solidarity and reciprocal good will can scarcely be utilized in such an atmosphere. All the more important it is that scientific work should not shirk their responsibility for upholding freedom of thought and investigation in countries where th principle is still honoured, of guarding against abuse of that freedom, of extending the spirit of impartial scientific inquiry into the many complex social economic and international problems at present so largely dominated by prejudice, and promoting within their own land an across its frontiers a spirit of respect ior facts and the rights of others. Upon such a basis alone can be based alike the citizenship h permits enlightened leadership and the under-anding and good will which estabolish justice and peace between nations; Governmenit, and the collective s of international relations can Y become a travesty. A resonant dogmatism drowns -the quieter tones of the cautious comment and query of the scientific investigator, and an e: change of ideas, accompanied by their Critical examination, becomes impo: sible.
Text read from the printed page and cleaned; old type leaves the occasional error.