Moody

“Measurement is the first step that leads to control and eventually to improvement. If you can’t measure something, you can’t understand it. If you can’t understand it, you can’t control it. If you can’t control it, you can’t improve it.”
― H. James Harrington

“There are more things, Lucilius, likely to frighten us than there are to crush us; we suffer more often in imagination than in reality.”
― Seneca, Letters from a Stoic

“Any of us confronted by a forgotten letter written some years ago will be astonished to find how much more foolish our opinions were than we had remembered them as being.”
― Bertrand Russell, The Analysis of Mind

“some lessons have to be experienced before they can be understood.”
― Michael batnick