We shall show mercy, but we shall not ask for it.
— Winston Churchill

I have always found that mercy bears richer fruits than strict justice.
Abraham Lincoln mers quote

Offenders never pardon.
— Proverbs

In case of doubt we should always lean on the side of mercy.
— Unknown

There are three things in the world that deserve no mercy, hypocrisy, fraud, and tyranny.
— Frederick William Robertson