The man without a purpose is like a ship without a rudder — waif, a nothing, a no man. Have a purpose in life, and, having it, throw such strength of mind and muscle into your work as God has given you. – Thomas Carlyle
Man is unique not because he does science, and his is unique not because he does art, but because science and art equally are expressions of his marvelous plasticity of mind. – Jacob Bronowski