Drive a nail home and clinch it so faithfully that you can wake up in the night and think of your work with satisfaction a work at which you would not be ashamed to invoke the Muse.
Physicists and astronomers see their own implications in the world being round, but to me it means that only one-third of the world is asleep at any given time and the other two thirds is up to something.
The impulse to create beauty is rather rare in literary men. Far ahead of it comes the yearning to make money. And after the yearning to make money comes the yearning to make a noise.
Writing a long and substantial book is like having a friend and companion at your side, to whom you can always turn for comfort and amusement, and whose society becomes more attractive as a new and widening field of interest is lighted in the mind.
It is very natural for young men to be vehement, acrimonious and severe. For as they seldom comprehend at once all the consequences of a position, or perceive the difficulties by which cooler and and more experienced reasoners are restrained from confidence, they form their conclusions with great precipitance. Seeing nothing that can darken or embarrass the question, they expect to find their own opinion universally prevalent and are inclined to impute uncertainty and hesitation to want of honesty, rather than of knowledge.