Fear urged him to go back, but growth drove him on. - Jack London

Fiction pays best of all and when it is of fair quality is more easily sold. A good joke will sell quicker than a good poem, and, measured in sweat and blood, will bring better remuneration. Avoid the unhappy ending, the harsh, the brutal, the tragic, the horrible - if you care to see in print things you write. (In this connection don't do as I do, but do as I say.) Humour is the hardest to write, easiest to sell, and best rewarded... Don't write too much. Concentrate your sweat on one story, rather than dissipate it over a dozen. Don't loaf and invite inspiration; light out after it with a club, and if you don't get it you will nonetheless get something that looks remarkably like it.

Growth is life, and life is for ever destined to make for light.

Do you know that the only value life has is what life puts upon itself? And it is of course over-estimated, since it is a necessity prejudiced in its own favor. ...There is plenty more life demanding to be born. ...He was worth nothing to the world. The supply is too large.