Entire ignorance is not so terrible or extreme an evil, and is far from being the greatest of all too much cleverness and too much learning, accompanied with ill bringing-up, are far more fatal. – Plato

The general knowledge of time on the island depends, curiously enough, on the direction of the wind. – John Millington Synge

Depend upon it 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