AMDG/LDS
It is a long-standing practice that pupils write A.M.D.G. in the top left hand corner of any piece of work they do. It stands for the Latin phrase Ad Majorem Dei Gloriam which means For the Greater Glory of God. At the end of a piece of work they write L.D.S. in the centre of the page. It stands for Laus Deo Semper which means Praise to God Always. These are both traditional Jesuit mottoes.
Read more about this topic: Religious Life At Stonyhurst College