Toleration is the best religion.

Whatever you believe about the largest questions, the part that shows in daily life is how you treat people who answer them differently. Conviction is cheap to hold and costs nothing until it meets disagreement. The willingness to let another person be wrong in peace is harder than any doctrine and does more good than most. It is not indifference, since you can hold your own view firmly and still leave others room to hold theirs.

Notice the next time someone says something you consider plainly mistaken. Decide whether correcting them serves anything beyond your own comfort.