On being 'reasonable'.

It is not in general unreasonable to affirm any one of a number of reasonable comprehensive doctrines .
Others who affirm doctrines different from ours are, we grant, reasonable also, and certainly not unreasonable.

Now, since there are many reasonable doctrines, the idea of the reasonable does not require us, or others, to believe any specific reasonable doctrine, though we may do so.

Therefore when we take the step beyond recognising the reasonableness of a doctrine and affirm our belief in it, we are not being unreasonable.

But if I take that further step recognising the reasonableness of a doctrine and affirming our belief in it, we necessarily think either that there are reasons for it which have failed to dawn on others who (reasonably) don't agree with us. .