«Let us repeat a thing one hundred times to be heard once,» said Santo Tomas.
A cat in mittens will catch few mice.
Be not always severe, nor always merciful, choose a mean between the two extremes, for that middle point is the centre of discretion.
It is impossible to love two at the same time. Can one light illumine two distant rooms simultaneously?
Show yourself too kind or confer at once too many benefits, and, if you are dealing with an insensible person, you will soon and certainly be underrated and abused.
All things in the world have their uses; your own faults and mistakes will doubtless harm you, but the misdoings of others, if well studied, may be your salvation.