宁静: tranquil, tranquility, serenity...
老: old; aged...
凡: common, orginary, general idea; outline; abstract, all, always, any; every...
巨头: tycoon, magnate, big player (including company, country, school etc), big shot...
低谷: valley, trough (as opposed to peaks), low point, lowest ebb, nadir of one's fortunes...
