In Uganda, I wrote a questionaire that I had my research assistants give; on it, I asked about the embalasassa, a speckled lizard said to be poisonous and to have been sent by Prime minsister Milton Obote to kill Baganda in the late 1960s. It is not poisonous and was no more common in the 1960s than it had been in previous decades, as Makerere University science professors announced on the radio and stated in print… I wrote the question, What is the difference between basimamoto and embalasassa? Anyone who knows anything about the Bantu language—myself included—would know the answer was contained in the question: humans and reptiles are different living things and belong to different noun classes… A few of my informants corrected my ignorance… but many, many more ignored the translation in my question and moved beyond it to address the history of the constructs of firemen and poisonous lizards without the slightest hesitation. They disregarded language to engage in a discussion of events… My point is not about the truth of the embalasassa story… but rather that the labeling of one thing as ‘true’ and the other as ‘fictive’ or ‘metaphorical’—all the usual polite academic terms for false—may eclipse all the intricate ways in which people use social truths to talk about the past. Moreover, chronological contradictions may foreground the fuzziness of certain ideas and policies, and that fuzziness may be more accurate than any exact historical reconstruction… Whether the story of the poisionous embalasassa was real was hardly the issue; there was a real, harmless lizard and there was a real time when people in and around Kampala feared the embalasassa. They feared it in part because of beliefs about lizards, but mainly what frightened people was their fear of their government and the lengths to which it would go to harm them. The confusions and the misunderstandings show what is important; knowledge about the actual lizard would not.
Thus, by science I mean, first of all, a worldview giving primacy to reason and observation and a methodology aimed at acquiring accurate knowledge of the natural and social world. This methodology is characterized, above all else, by the critical spirit: namely, the commitment to the incessant testing of assertions through observations and/or experiments — the more stringent the tests, the better — and to revising or discarding those theories that fail the test. One corollary of the critical spirit is fallibilism: namely, the understanding that all our empirical knowledge is tentative, incomplete and open to revision in the light of new evidence or cogent new arguments (though, of course, the most well-established aspects of scientific knowledge are unlikely to be discarded entirely).. . . I stress that my use of the term 'science' is not limited to the natural sciences, but includes investigations aimed at acquiring accurate knowledge of factual matters relating to any aspect of the world by using rational empirical methods analogous to those employed in the natural sciences. (Please note the limitation to questions of fact. I intentionally exclude from my purview questions of ethics, aesthetics, ultimate purpose, and so forth.) Thus, 'science' (as I use the term) is routinely practiced not only by physicists, chemists and biologists, but also by historians, detectives, plumbers and indeed all human beings in (some aspects of) our daily lives. (Of course, the fact that we all practice science from time to time does not mean that we all practice it equally well, or that we practice it equally well in all areas of our lives.)