What counts most is holding on. The growth of a train of thought is not a direct forward flow. There is a succession of spurts separated by intervals of stagnation, frustration, and discouragement. If you hold on, there is bound to come a certain clarification. The unessential components drop off and a coherent, lucid whole begins to take shape.

Entry (1961) - Eric Hoffer and the Art of the Notebook (2005)