I enjoy those small chats you have when people come up and talk to you about your work. It only involves a few seconds of effort to be nice to those people, and I am very grateful for the kind words that people have taken the trouble to express to me in person.
Of course, we have known for a long time that a word, like any verbal sign, is a unity of two components.
When I was in the seventh grade I did a report about the environment and the loss of species. It was supposed to be only a few pages, but ended up being nearly 50.

