There comes a time when for every addition of knowledge you forget something that you knew before. It is of the highest importance, therefore, not to have useless facts elbowing out the useful ones.” Arthur Conan Doyle, Sherlock Holmes

Absorb what is useful, Discard what is useless, and Add that which is essential, that is your own.” – Bruce Lee

Nothing can have value without being an object of utility” – Karl Marx

Get on board, or get out of the way.