柠檬问题发生的原因是卖家比买家更了解产品,从而导致市场失灵。
The best architecture is born out of necessity and love.
数学思想的真正考验是它能否激发进一步的思考。
写作是留下遗产的一种方式。
We must design products with their end-of-life in mind from the very beginning.