Peace carries with it a sense of settled and harmonious rest and deliverance.
A deep quietude where no disturbance can come - a quietude with a sense of established security and release.
In peace there is besides the sense of stillness, a harmony that gives a feeling of liberation and full satisfaction. 
Progress is the very heart of the significance of human life, for it means our evolution into greater and richer being.
Progress consists not in rejecting beauty and delight, but in rising from the lower to the higher, the less complete to the more complete beauty and delight.
The harmony of the inner and outer man which is the true meaning of civilisation and the efficient condition of a true progress.