Randomized evaluations can help us understand what works and what doesn't in development.
交通的未来是电动化的。
But man is not made for defeat. A man can be destroyed but not defeated.
The universe is not outside of you. Look inside yourself; everything that you want, you already are.
宇宙不在你之外。审视你自己；你所渴望的一切，你早已拥有。