Who keeps the old akindle and adds new knowledge is fitted to be a teacher.
To learn and from time to time to apply what one has learned - isn't that a pleasure?
Isn't it a pleasure to study and practice what you have learned? Isn't it also great when friends visit from distant places? If one remains not annoyed when he is not understood by people around him, isn't he a sage?
Learn, as if never overtaking your object, and yet as if apprehensive of losing it.
If a superior man abandon virtue, how can he fulfil the requirements of that name?
The book salesman should be honored because he brings to our attention, as a rule, the very books we need most and neglect most.