Thomas would become salt to the earth and light for the world as a Dominican. Thomas did not store up his knowledge for himself and his own intellectual enjoyment; he chose to be part of the new evangelization of his day. For St. Thomas chief among the works of the active religious life are those which are directly ordained to the salvation of souls, such as preaching and teaching, putting taste back into people’s life and light into the darkness.
Salt is not to be stored but spread liberally bringing out the true flavor of that on which it is poured and a light is not to be put under a bushel, but placed on a lamp stand for all in the house to see. It is Thomas who explains to us so clearly why the new band of preachers established by Dominic put study at its centre, for it is study that keeps the salt tasty and the light burning.
To quote from St. Paul’s letter to the Philippians: Fill your minds with everything that is true, everything that is noble, everything that is good and pure, everything that we love and honour, and everything that can be thought virtuous or worthy of praise. (Phil 4:8) Fill your mind with the light of all that is good. What you read and what you look at, on TV on the internet, should be salty and not raunchy as it were.
Keep the salt tasty and the light burning brightly by assiduous study of sacred truth and let your light give taste to the world by the teaching of true doctrine. This was Dominic’s way and it remains our way of a "charity of and in the truth", an "intellectual charity" (Benedict XVI) that must be exercised to enlighten minds and renew the Church of today.