Understanding the Trinity

Why do you balk at the doctrine of the Trinity—God the three in One—yet meekly acquiesce when Einstein tells you E=mc²?  What makes you suppose that the expression “God ordains” is narrow and bigoted, while your own expression, “Science demands” is taken as an objective statement of fact?...

I admit, you can practice Christianity without knowing much theology, just as you can drive a car without knowing much about internal combustion.  But when something breaks down in the car, you go humbly to the man who understands the works; whereas if something goes wrong with religion, you merely throw the works away and tell the theologian he is a liar.

– from an essay by Dorothy L. Sayers