You can always juice sales by going down-market, but it's hard to go back upmarket.
当市场下跌时,你轻易的将好东西打折变卖,但是一旦市场向上,再想买回来,难之又难。
激发生命,让生命自由发展,这是教育者的首要任务。
Arriving at one goal is the starting point to another.
Leadership is about inspiring others to see possibilities where they once saw obstacles.
Black holes are not just cosmic vacuums; they are the ultimate laboratories for testing the limits of our physical theories.