你永远不知道你有多坚强，直到坚强成为你唯一的选择。
"You never know how strong you are until being strong is the only choice you have."
The future of drones belongs to those who dare to push boundaries.
The task of psychology is to reduce complex mental phenomena to their simplest components.
"The past is never dead. It's not even past."
成功投资的关键是以低于其内在价值的价格买入股票并保持耐心。
The first rule of quality is that it must be defined.