Rebuke should have a grain more of salt than of sugar. – Proverb

Of all follies there is none greater than wanting to make the world a better place. – Moli

Turn where we may, within, around, the voice of great events is proclaiming to us, Reform, that you may preserve! – Thomas Babington Macaulay

By continually scolding someone, they in time become accustomed to it and despise your reproof. – Proverb