The city is the greatest invention of mankind.
年轻时你以为可以离开永不回头,但你总会回望。
Dreams need courage, and even more action.
Labor economics is fundamentally about understanding people’s choices and constraints.
Your most unhappy customers are your greatest source of learning.
孩子独立的智能发展无可限量,它直接依赖孩子心智的力量,而不仅靠导师的工作。