The fundamental cause of trouble in the world is that the stupid are cocksure while the intelligent are full of doubt. (Bertrand Russell)

The artist is nothing without the gift, but the gift is nothing without work. (Emile Zola)

Some cause happiness wherever they go; others, whenever they go. (Oscar Wilde)

Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth. (Sherlock Holmes (by Sir Arthur Conan Doyle, 1859-1930))