Ray Bradbury

“We must take arms each and every day, perhaps knowing that the battle cannot be entirely won, but fight we must, if only a gentle bout. The smallest effort to win means, at the end of each day, a sort of victory. Remember that pianist who said that if he did not practice every day he would know, if he did not practice for two days, the critics would know, after three days, his audiences would know.

A variation of this is true for writers. Not that your style, whatever that is, would melt out of shape in those few days.

But what would happen is that the world would catch up with and try to sicken you. If you did not write every day, the poisons would accumulate and you would begin to die, or act crazy, or both.”
― Ray Bradbury, Zen in the Art of Writing: Essays on Creativity