Next to the official, there are other two informal mottos, linked to two places in the school: the back wall of the Great Hall shows the motto "Being more than seeing", translation of the phrase "Esse quam videri" coming from chapter 98 of the De amicitia of Cicero; under the big clock in the school, located on the first floor landing, it is printed the motto "Il perder tempo a chi più sa più spiace" (Losing time is more regretted to whom more know), coming from the third canto of the Purgatorio of the "Divine Comedy" of Dante Alighieri.