The goal of behavior is always the reduction of some drive or need.
金钱的匮乏是所有罪恶的根源。
A liberdade é como o ar que respiramos; sem ela, sufocamos.
Every character in a novel is a kind of experiment in human nature.
采矿创新不是可选的——它对生存和可持续性至关重要。
社会当人民服从执法者,执法者服从法律时,便是良好的治理。
The best companies are started not because the founder wanted a company but because the founder wanted to change the world.