H. L. Mencken says:
Religion, of course, does make some men better, and perhaps even many men. There can be no doubt of it. But making them better by filling their poor heads with grotesque nonsense is an irrational and wasteful process, and the harm it does greatly outweighs the good. If men could be made better--or even only happier--by teaching them that two and two make five there would be plenty of fools to advocate that method, but it would remain anti-social none the less. If the theologians could only agree on their doctrines their unanimity might have some evidential value, just as the agreement of all politicians that the first duty of the citizen is to obey them and admire them has some evidential value. It may not be true, but it is at least undisputed by all save a small fraction of heretics, which is certainly something. Fortunately for common sense, the theologians are never able to agree. Even within the sects, and under the more rigid discipline, there is constant wrangling, as, for example, between the Jesuits and the Dominicans. Thus the cocksureness of one outfit is cancelled out by the ribald denial of all the rest, and rational men are able to consign the whole gang to statistics and the Devil.
One of the most irrational of all the conventions of modern society is the one to the effect that religious opinions should be respected. This convention protects them, and so they proceed with their blather unwhipped and almost unmolested, to the great damage of common sense and common decency. That they should have this immunity is an outrage. There is nothing in religious ideas, as a class, to lift them above other ideas. On the contrary, they are always dubious and often quite silly. Nor is there any visible intellectual dignity in theologians. Few of them know anything that is worth knowing, and not many of them are even honest.
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A boy and his dog can go walking
A boy and his dog sometimes talk to each other
A boy and a dog can be happy sitting down in the woods on a log
But a dog knows his boy can go wrong