Meanings of mere sentimentality in English

Without it all their religious demonstration would be mere sentimentality.

Our scientific and business-like methods, as distinct from mere sentimentality.

You are not in the least flighty, and would never sacrifice important affairs for mere sentimentality.

This, however, is mere sentimentality; and as regards George and Theo, is neither here nor there.

That is mere sentimentality that lies abed by day and thinks itself white, far from the tan and callus of experience.

If you don't want to marry me, don't; but the position you take up about love, and not seeing each other-isn'tthat mere sentimentality?

There is a great quantity of mere sentimentality connected with these and similar phrases, over and above the amount of rational meaning contained in them.

Mere sentimentality, mood, rhyme-nothing?