Something gained

“To be always peaceful is no more a part of progress than it is of a river, which piles up rocks and creates barriers as it flows; these obstacles cause the water to froth and humanity to seethe. This leads to disturbance; but when the disturbance is over we realize that something has been gained.” (Victor Hugo, Les Miserables

Progress

“Would you think I was joking if I said that you can put a clock back, and that if the clock is wrong it is often a very sensible thing to do? . . . We all want progress. But progress means getting nearer to the place where you want to be. And if you have taken a wrong turning, then to go forward does not get you any nearer.” (CS Lewis, Mere Christianity)