Some minds seem almost to create themselves, springing up under every disadvantage and working their solitary but irresistible way through a thousand obstacles. – Washington Irving, The Sketch Book, 1820

Men are not prisoners of fate, but prisoners of their own minds. – Franklin D. Roosevelt

Mind is blocking the fountain of intelligence like a rock. – Bhagwan Shree Rajneesh

A mental stain can neither be blotted out by the passage of time nor washed away by any waters. – Cicero