That is to say, it is bad enough to be dogmatic, we are told. But ‘if you must be dogmatic’, our critics continue, ‘do at least keep your dogmatism to yourself. Hold your own definite convictions (if you must), but leave other people alone in theirs. Be tolerant. Mind your own business, and let the rest of the world mind theirs.’ Another way in which this point of view is expressed is to urge us always to be positive, if necessary dogmatically positive, but never to be negative. ‘Speak up for what