我们这个时代的挑战是在不伤害地球的情况下利用能源。
事物背后必定隐藏着某些极为深奥的东西。
I was born to make mistakes, not to fake perfection.
We should focus on both short-term gains and long-term value creation.
免费的疫苗比昂贵的治疗更有价值,但更难推广。