As a rule it will listen to neither a dull speaker nor a bright one. It refuses all persuasion. The dull speaker wearies it and sends it far away in idle dreams; the bright speaker throws out stimulating ideas which it goes chasing after and is at once unconscious of him and his talk. You cannot keep your mind from wandering, if it wants to; it is master, not you.

**About the mind

Mark Twain

Mark Twain