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Amateurs are fond of advising that all practical measures should be postponed pending carrying out detailed researches upon the habits of anophelines, the parasite rate of localities, the effect of minor works, and so on. In my opinion, this is a fundamental mistake. It implies the sacrifice of life and health on a large scale while researches which may have little real value and which may be continued indefinitely are being attempted… In practical life we observe that the best practical discoveries are obtained during the execution of practical work and that long academic discussions are apt to lead to nothing but academic profit. Action and investigation together do more than either of these alone.
