The mind is a complex system that can be analyzed at multiple levels.
心灵是一个可以在多个层次上分析的复杂系统。
保持饥饿,保持愚蠢。
Trade between two countries can be mutually beneficial, even if one of them is less efficient in the production of all commodities.
最成功的企业是那些能够快速适应变化,同时忠于其核心价值观的企业。