This quote from Van Gogh to his brother Theo is as much about writing as it is about painting. The empty page is scary and many writers shy away from starting. Put any old rubbish up on the page, stop it being blank, then create from what you have rather than what you don't.
I tell you, if one wants to be active, one must not be afraid of going wrong, one must not be afraid of making mistakes now and then. Many people think that they will become good just by doing no harm – but that’s a lie, and you yourself used to call it that. That way lies stagnation, mediocrity.
Just slap anything on when you see a blank canvas staring you in the face like some imbecile. You don’t know how paralyzing that is, that stare of a blank canvas is, which says to the painter, You can’t do a thing. The canvas has an idiotic stare and mesmerises some painters so much that they turn into idiots themselves. Many painters are afraid in front of the blankcanvas, but the blank canvas is afraid of the real, passionate painter who dares and who has broken the spell of “you can’t” once and for all.
Life itself, too, is forever turning an infinitely vacant, dispiriting blank side towards man on which nothing appears, any more than it does on a blank canvas. But no matter how vacant and vain, how dead life may appear to be, the man of faith, of energy, of warmth, who knows something, will not be put off so easily.