I value self-discipline, but creating systems that make it next to impossible to misbehave is more reliable than self-control.
When you re-read a classic you do not see in the book more than you did before. You see more in you than there was before.
A piece of wall can be visually disintegrated from the whole into a separate triangle by plunging a diagonal of light from edge to edge on the wall; that is, side to floor, for instance.

