电商的本质是零售，零售的本质是效率。
The essence of e-commerce is retail, and the essence of retail is efficiency.
At a restaurant do you order what you know is great， or do you try something new？ Do you make what you know will sell or try something new？ Do you keep dating new folks or try to commit to someone you already met？ The optimal balance for exploring new things vs exploiting them once found is: 1/3. Spend 1/3 of your time on exploring and 2/3 time on deepening. It is harder to devote time to exploring as you age because it seems unproductive， but aim for 1/3.
除了鲜血、劳作、泪水和汗水，我没有其他可奉献的。