With the exception of one extraordinary man, I have never known an individual, least of all an individual of genius, healthy or happy without a profession, ie some regular employment, which does not depend on the will of the moment, and which can be carried on so far mechanically that an average quantum only of health, spirits, and intellectual exertion are requisite to its faithful discharge.
Three hours of leisure, unannoyed by any alien anxiety, and looked forward to with delight as a change and recreation, will suffice to realise in literature a larger product of what is truly genial, than weeks of compulsion.
Money and immediate reputation form only an arbitrary and accidental end of literary labour. The hope of increasing them by any given exertion will often prove a stimulant to industry, but the necessity of acquiring them will in all works of genius convert the stimulant into a narcotic.
Motives by excess reverse their very nature, and instead of exciting, stun and stupefy the mind.
For it is one contradistinction of genius from talent, that the predominant end is always compromised in the means; and this is one of the many points, which establish an analogy between genius and virtue.
SAMUEL TAYLOR COLERIDGE 1815-1817