Confidence comes from preparation. Know your stuff inside out.
自信源于准备，彻底了解你的领域。
Simplicity is a great virtue but it requires hard work to achieve it and education to appreciate it. Simplicity is the ultimate sophistication.
Success is not final, failure is not fatal: It is the courage to continue that counts.
关注金字塔底层的企业可以在服务穷人的同时创造盈利业务。
"The world breaks everyone, and afterward, some are strong at the broken places."
自行车是我改变的工具。它是我产生影响的手段。