Well, not exactly. Gin is made from juniper berries. And juniper berries are not actually berries, but female seed cone (read pinecones). THIS IS WHY IT TASTES LIKE CHRISTMAS TREES, which (in our opinion) is a very good thing. Gin is basically just vodka.
The most selfish thing a person can do is to show that he/she is the most selfless person in this world... As most of the people try to show off their act of selflessness and the very same moment this act become selfish...
While this may be what people actually do, as Rachels notes, the logic underlying this interpretation is flawed. For example, it certainly is in one s self-interest to brush one s teeth daily; but, it is not a selfish act to brush one s teeth daily.