The American grips himself, at the very sources of his consciousness, in a grip of care: and then, to so much of the rest of life, is indifferent. Whereas, the European hasn't got so much care in him, so he cares much more for life and living.
With no other privilege than that of sympathy and sincere good wishes, I would address an affectionate exhortation to the youthful literati, grounded on my own experience. It will be but short; for the beginning, middle, and end converge to one charge: NEVER PURSUE LITERATURE AS A TRADE.