A good style should show no signs of effort. What is written should seem a happy accident. – W. Somerset Maugham, Summing Up, 1938

Find out the reason that commands you to write; see whether it has spread its roots into the very depth of your heart; confess to yourself you would have to die if you were forbidden to write. – Rainer Maria Rilke

When something can be read without effort, great effort has gone into its writing. – Enrique Jardiel Poncela

Proofread carefully to see if you any words out. – Author Unknown